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1 QUESTION 30 PTS FOR BRAINLIEST... QUESTIONS IN ATTACHMENT (have to show your work/reasoning) please help

1 QUESTION 30 PTS FOR BRAINLIEST... QUESTIONS IN ATTACHMENT (have to show your work/reasoning) please help class=

Verified Answer :

4 x 16 = 64
(21 x 16 )/2 = 168
10 x 15 = 150
(10x10)/2 = 50

64 + 168 + 150 + 50 = 432

answer 432 unit^2 (first choice)

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