geometry
posted by angela .
FIND THE PERIMETER AND AREA OF A RIGHT IF THE SHORTEST SIDE IS 20MM. AND THE LONGEST SIDE IS 52MM. INCLUDE CORRECT UNITS WITH EACH PART OF YOUR SOLUTION.

geometry 
Ms. Sue
Is this a right TRIANGLE?
If it is, I'll be glad to help you. 
geometry 
angela
YES

geometry 
Ms. Sue
First, we need to determine the length of the third side by using the Pythagorean Theorem.
a^2 + b^2 = c^2
20^2 + b^2 = 52^2
400 + b^2 = 2704
b^2 = 2304
b = 48
The perimeter is the sum of the three sides.
20 + 48 + 52 = P
The area is found by using this formula:
A = 1/2 * b * h
A = (1/2) * 20 * 48
A = ________sq. mm.
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