If you have all three angles, you can use the law of sines, which states that the ratio of the sine of one angle is to it's opposite side as the sine of another angle is to it's opposite side.
You use the Pythagoras Theorem if it is a right-angled triangle. a squared + b squared = h (longest side, diagonal) squared, then square root h to find the longest side. if it is not a right angled triangle, then use the Sine or Cosine rule. Sine rule for: two angles and any one side or two sides and an angle that is not in between the sides. Cosine rule for: all three sides (but then you do not need to find a missing side) or two sides and an angle that is in between.
Yes you can but you'll probably be wrong seeing that you're so stupid that you have to resort to wikia answer you sped
No.
180 minus two known angle = missing angle. Use Pythagoras' theorem to find its missing side.
Since 2 of it's angles are equal (45 degrees), you have an isoceles triangle. Hence, two of its sides are the same. Since the other angle is 90, you have a right angle triangle. This means that if you're missing the hypotenuse, you can use the Pythagorean theorem to find it. H^2 = A^2 + B^2 Where H is the length of the hypotenuse, and A and B are the lengths of the other 2 sides. (Here, A = B).
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The way to find the missing side of a triangle-THIS ONLY WORKS ON RIGHT ANGLED TRIANGLES-is square both sides seperately and then add them together to give you the square of the missing side-find the square root and that is the size of the missing side-eg. if you have a RIGHT ANGLED TRIANGLE with sides of 3inch and 4inch then (3x3) + (4x4) = 25 so the square root of 25 is 5 meaning the missing side is 5inch.
A triangle always has 180 units. You would have to add up the two sides and subtract that from 180.
To find the missing side length of a triangle with sides 21 and 35, we can use the Pythagorean theorem if it's a right triangle. However, if the triangle is not specified as a right triangle, we cannot determine the missing side without additional information, such as the angle between the two sides or whether it is an isosceles triangle. Therefore, more context is needed to calculate the missing side length accurately.
to find the missing side of a right triangle you need the pythagorean theorem. A2 + B2 = C2. c is the longest side and a and b is the other sides. no particular side is a or b just the longest side is c.
180-x-y (x and y are the sides you already know) there are 180 degrees in a triangle. The remaining # is the last angle
Surely you know how to find the third side of a right triangle, when you know the lengths of the other two. Find it, and then add up the lengths of the three sides to get the perimeter.
No, you do not need to know the length of all the sides of one triangle to find a missing length of a similar triangle. If you know at least one pair of corresponding sides from both triangles, you can use the proportionality of the sides in similar triangles to find the missing length. The ratio of the lengths of corresponding sides remains constant, allowing you to set up a proportion to solve for the unknown length.
Use two sides and Pythagoras's theorem to work out the third side. Then simply add the three sides.
You use the Pythagoras Theorem if it is a right-angled triangle. a squared + b squared = h (longest side, diagonal) squared, then square root h to find the longest side. if it is not a right angled triangle, then use the Sine or Cosine rule. Sine rule for: two angles and any one side or two sides and an angle that is not in between the sides. Cosine rule for: all three sides (but then you do not need to find a missing side) or two sides and an angle that is in between.
Yes you can but you'll probably be wrong seeing that you're so stupid that you have to resort to wikia answer you sped
Having sufficient angles or sides one can use either, The Law of Sines, or, The Law of Cosines. Google them.