The perimeter of a shape is the distance all the way around it.
The perimeter doesn't have sides.
If it's a right triangle, you use the Pythagorean theorem: a2 + b2 = c2, where c is the length of the hypotenuse and a and b are the lengths of the other two sides. Also, if angle A is the angle opposite side a and angle B is the angle opposite side b, sin A = cos B = a ÷ c, sin B = cos A = b ÷ c, tan A = a ÷ b, and tan B = b ÷ a. With these equations you should be able to calculate the length of any side of a right triangle given either the lengths of the other two sides or given the length of one side and the magnitude of angle A or angle B.
Chat with our AI personalities
Equilateral triangles have all sides the same length, and to get the perimeter, you add all the side lengths. 15+15+15=45
-- The perimeter of the square is [4 times the length of one side] . -- The length of one side of the square is [square root of its area] .
divide the perimeter by four to get the length of one side then square your answer to find the area
Take the measurement of one side of the square and multiply it by 4.
That depends on what type of triangle is if the side given is equal to the perimeter divided by 3 then it is an equilateral triangle.