a. P = 18, A = 10

b. P = 13, A = 20

c. P = 8, A = 10

d. P = 18, A = 12

A. P = 18, A = 10

Step-by-step explanation:

Perimeter = 1 + 2 + (1 + 2) + 1 + 2 + (5-2-1) + 2 + 5

= 1 + 2 + 3 + 1 + 2 + 2 + 2 + 5 = 18

This eliminates everything but choice A and D.

Area = (1 * 5) + (1 * 3) + (1 * 2) = 5 + 3 + 2 =10

overpriced

step-by-step explanation:

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

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