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How do you find an angle of a right triangle when 3 sides are given?
you need a calculator to do Sin-1 Opposite/hypotenuse OR Cos-1 Adjacent/Hypotenuse OR Tan-1 Opposite/Adjacent
How many sides does a polygon with an interior angle measure 180?
I don't know the exact amount when it starts, but I just tried it with 1 trillion sides and each angle was 180. So we know it starts between 1 billion and 1 trillion sides.
How do you find an angle of a triangle with only three sides given?
Use the cosine rule. If a, b and c are the sides with angle A opposite side a, then 2bc*cos(A) = b2 + c2 - a2 so that Angle A = cos-1[(b2 + c2 - a2)/(2bc)]
How do you decide angle of a triangle using cosine rule?
If the lengths of the three sides are a, b and c units, then the angle opposite side a, that is, angle A is given by cos-1[b2 + c2 - a2)/(2bc)]
A parallelogram with 4 right angles with different lenths and widths?
A parallelogram is a figure with different lengths and widths(also called breadth) where opposite sides and opposite angles are equal. But the angles are not 900 each. In fact, no angle in a parallelogram is a right angle as presence of 1 right angle proves all the angles to be right angles. A parallelogram with 4 right angles is called as a ''rectangle''
Find hypotenuse only using opposite and angle?
In a right angles triangle the sides are named the hypotenuse (the side opposite the right angle) and the other two sides are called the adjacent and the opposite sides. 1) The sine of an angle = length of the opposite side ÷ length of the hypotenuse. 2) The cosine of an angle = length of the adjacent side ÷ length of the hypotenuse. Using 1) The length of the hypotenuse = length of the opposite side ÷ the sine of the angle. Using tables or a calculator obtain the sine of the angle and divide this into the length of the opposite side. The result will be the length of the hypotenuse.
What are 15 facts about an equilateral triangle?
1. It has 3 sides. 2. It has 3 angles. 3. One is side a. 4. The angle opposite side a is Angle A. 5. The sceond side is side b. 6. The angle opposite side b is angle B. 7. The third side is side c. 8. The angle opposite side c is angle C. 9. All sides have equal lenght. 10. All angles have equal measures. 11. Each angle is 60 degrees. 12. The bisector of angle A will bisect side a. 13. The bisector of angle B will bisect side b. 14. The bisector of angle C will bisect side c. 15. Each bisector is perpendicular to the opposite side. 16. Each bisector creates a 30, 60, 90 right triangle.
How do you find an angle of a right triangle when 3 sides are given?
you need a calculator to do Sin-1 Opposite/hypotenuse OR Cos-1 Adjacent/Hypotenuse OR Tan-1 Opposite/Adjacent
How many sides does a polygon have if the exterior angle is 30?
If its a regular polgon and each exterior angle is 30 degrees then it will have 360/30 = 12 sides
How do you find the measure of an angle by using its tangent?
You would have to use its opposite tangent, tan-1on your scientific calculator. It would be tan-1(opposite side/adjacent side), and you must have the opposite and adjacent sides of the angle you are trying to solve.
How many sides would a regular polygon have if each exterior angle were only 1 degree?
It would have 360/1 = 360 sides.
What is a 4 sided shape with 2 equal sides and 2 equal sides with 1 angle on each side?
A square
How many sides does a polygon with an interior angle measure 180?
I don't know the exact amount when it starts, but I just tried it with 1 trillion sides and each angle was 180. So we know it starts between 1 billion and 1 trillion sides.
Is median is a angle bisector?
A median is a line drawn from the centre of a side of a triangle to the opposite vertex. Only in two cases does it also bisect the angle :- 1) All three medians of an equilateral triangle bisect the angle of the opposite vertex. 2) One median (from the unequal side to the enclosed angle of the two equal sides) bisects the angle of the opposite vertex.
How do you find an angle of a triangle with only three sides given?
Use the cosine rule. If a, b and c are the sides with angle A opposite side a, then 2bc*cos(A) = b2 + c2 - a2 so that Angle A = cos-1[(b2 + c2 - a2)/(2bc)]
What is the relationship between the length of the legs of a 30-60-90 triangle?
-- The side opposite the 90° angle, known as the hypotenuse, is the longest of the three sides. The other two sides are called the "legs". -- The length of the leg opposite the 30° angle is 1/2 of the hypotenuse. -- The length of the leg opposite the 60° angle is 1/2 of the hypotenuse times sqrt(3). -- The sum of the squares of the lengths of the legs is the square of the length of the hypotenuse.
How do you decide angle of a triangle using cosine rule?
If the lengths of the three sides are a, b and c units, then the angle opposite side a, that is, angle A is given by cos-1[b2 + c2 - a2)/(2bc)]
