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you minus the bigger side by the smaller side
example: a 6 in side and a 2 in side. you do 6-2=4. the missing side is 4 in
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∙ 2011-09-20 01:59:32
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Can you transform sine functions into cosine functions?
If you know the measure of one angle, and the length of one side of a triangle, you can find the measures of the other sides and angles. From there, you can find the values of the other trig functions. cos (x) = sin (90-x) in degrees there are other identities such as cos^2+sin^2=1, so cos^2=1-sin^2
What is the law of cosines?
It is a mathematical equation that allows you to "solve" a triangle (find all length and angle values), if you know 2 sides and an included angle, or all three sides. It doesn't have to be a right triangle. You can find the cosine on a calculator easily.c2 = a2 + b2- 2ab cos CC = included anglec = side opposite angle C (c)a = side ab = side bThe cosine law relates the length of the sides of a triangle to one of the angles in the triangle. If the triangle is labelled with vertices A, B, C with usual notation for edges (ie a is the side opposite the vertex A, so not touching A) and if x is the angle at vertex C then the cosine law says (c^2)=(a^2)+(b^2)-2abcos(x)
Find the length of the side opposite angle a?
It depends on what else you know. If it is a non-right triangle, and you only know angle a, it is impossible to fing side A (the side opposite an angle usually has the same letter, but capitalized). If you know the other two sides, then I would use the law of cosines: For a triangle with sides A B C A = √(B2+C2-(2*B*C*(cos (a)))) If you know another angle and one side, I would use the law sines: A/(sin a) = B/(sin b) therefore, A = (sin a) * B/(sin b) If it is a right triangle, and you know another side, than your job is even easier: If you know the hypotenuse (side C), than: A = C *(sin a) If you know the adjacent side (side B), than: A = B * (tan a)
Which of these angles is coterminal with 32?
-5pi/2
Find out value of sin 45 cos 45 - sin 230?
Assuming that the angles are all stated in degrees: sin(45) = cos(45) = 1/2 sqrt(2) sin(45) cos(45) = (1/2)2 x (2) = 1/2 sin(230) = - 0.7660444 sin(45) cos(45) - sin(230) = 0.5 + 0.7660444 = 1.2660444 (rounded)
Find the angles in a quatrilateral when you know 2 angles?
The sum of all four angles is 360 degrees. Thus, you have insufficient information to know the individual angles; you can only know their sum, which is 360 minus the sum of the other two angles.
How do you find the missing angles of a triangle?
Add the two angles you have and then take 180 minus the number you got. All (ALL) triangle add up to 180 degrees. ----------------------------------------------------------- If you are given two, add the two angles up and subtract the sum by 180. That is the degree of that angle You can find the missing angles by one of 2 ways: If you know the other 2 angles you can subtract them from 180. There is a total of 180 degrees in a triangle and subtracting the other 2 gives you the third. OR If you only know the side lengths you can use Sin, Cos, Tan, etc. trigonometric functions to find it. You use the SOHCAHTOA method for this. Sin= Opposite side/Hypotenuse Cos= Adjacent side/Hyoptenuse Tan= Opposite side/Hypotenuse so if you have angle x and you know the side opposite is 4 and the hypotenuse is 5 Sin X=4/5
How do you find values for the third side of a triangle?
Perimeter -2 known sides = 3rd side 180 -2 known angles = 3rd angle
What shape have 2 acute angles and 2 obtuse angles and1 pair of parallel lines.I have 1 short side and 1 long side?
Some trapezoids have 2 acute angles, 2 obtuse angles, 1 pair of parallel lines, 1 short side, and 1 long side.
Are triangles congruent if so how do you know?
ASA stands for "angle, side, angle" and means that we have two triangles where we know two angles and the included side are equal. If two angles and the included side of one triangle are equal to the corresponding angles and side of another triangle, the triangles are congruent.
How do you find the perpendicular distance in a triangle?
The answer will depend on what information you do have.If you know two sides and the included angle you can find the area. Then perpendicular distance = 2*Area/Base.If you know all three sides then you can use the cosine rule to find one of the angles. Then, you have two sides and the included angle and can proceed as above. Actually, you can find the area directly from the three sides.If you know one side and two angles, you effectively know one side and all three angles. You can use the sine rule to find one of the other sides and then you have two sides and an included angle and so can proceed as before.There are more complicated solutions where other measures are known.The answer will depend on what information you do have.If you know two sides and the included angle you can find the area. Then perpendicular distance = 2*Area/Base.If you know all three sides then you can use the cosine rule to find one of the angles. Then, you have two sides and the included angle and can proceed as above. Actually, you can find the area directly from the three sides.If you know one side and two angles, you effectively know one side and all three angles. You can use the sine rule to find one of the other sides and then you have two sides and an included angle and so can proceed as before.There are more complicated solutions where other measures are known.The answer will depend on what information you do have.If you know two sides and the included angle you can find the area. Then perpendicular distance = 2*Area/Base.If you know all three sides then you can use the cosine rule to find one of the angles. Then, you have two sides and the included angle and can proceed as above. Actually, you can find the area directly from the three sides.If you know one side and two angles, you effectively know one side and all three angles. You can use the sine rule to find one of the other sides and then you have two sides and an included angle and so can proceed as before.There are more complicated solutions where other measures are known.The answer will depend on what information you do have.If you know two sides and the included angle you can find the area. Then perpendicular distance = 2*Area/Base.If you know all three sides then you can use the cosine rule to find one of the angles. Then, you have two sides and the included angle and can proceed as above. Actually, you can find the area directly from the three sides.If you know one side and two angles, you effectively know one side and all three angles. You can use the sine rule to find one of the other sides and then you have two sides and an included angle and so can proceed as before.There are more complicated solutions where other measures are known.
You have 4 side the same length 2 acute angles and 2 obtuse angles?
rhombus
Do supplementary angles have to have a common side?
Yes. 2 supplementary angles are angles that share a common side and add up to 180 degrees.
How do you find the angles of a rhombus with a side length of 5 and 2?
A rhombus has all four sides the same length.
How do you use the law of sines?
The Law of Sines can be used to find unknown parts (a side or angle) of a triangle. For example if you know 2 angles and a side, or if you know 2 sides and 1 angle (depending on how they are oriented). Visit the Maths Is Fun site (link posted below) for a more graphical explanation.
How do you find the area of a triangle if the length of two sides is unknown?
It depends on what IS known. If you know one side and the perpendicular distance from that side to the opposite vertex then it is 1/2*side*perp distance. If you know two angles (and so all three) you can use the sine rule to calculate both the missing sides.
What is a polyhedron which has 2 equal side 2 equal angles and 3 vertices called?
How many sides does it have altogether? If it just has the 2 angles and side and 3 corners, there is no polyhedron with that discription.
