Answer:
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Step-by-step explanation:
cant see work, attached qork
8.75 feet
trust me i got it right on my test ;;
S = 2*(1/2 * 7 * 14) + 2* (1/2 * 7 * 7) = 7*14 + 7*7 = 7*(14+7) = 7*21 = 147 sm^2
Number B