Answer:
Step-by-step explanation:
Using the pythagorean theorem, we can solve to find C.
a^2 + b^2 = c^2
So it will be 15^2 + 20^2 = c^2
Simplify:
225 + 400 = c^2
625 = c^2
Square root both sides of the equation and you will get:
25 = c
c = 25
(a) The length of the unknown side is 25 yd
For perimeter, just add 20 + 15 + 25
(b) So the perimeter is 60 yd
The formula for area of a triangle is:
Area = (Base x Height) / 2
Now, we can plug in the numbers.
Base = 15
Height = 20
(15 x 20) / 2
300 / 2
= 150
(c) The area of the triangle is 150yd^2