Asked 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.
Answered by Ms. Sue
Is this a right TRIANGLE?

If it is, I'll be glad to help you.
Answered by angela
YES
Answered by 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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