Respuesta :

6 +2.5 = 8.5

the horizontal line is 2.5 +2.5 = 5m
 (use Pythagorean theorem)

area = 8.5 * 5 = 42.5 / 2 = 21.25 m^2

answer is the 3rd choice

area = 8.5 * 5 = 42.5 / 2 = 21.25 m^2

therefore the correct answer is C

hope this helps :)
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