Me !

what is the missing reason in steps 7 and 8 of the proof?

a. definition of sine in right triangle
b. definition of equilateral triangle

  A. definition of sine in right triangle

Step-by-step explanation:

Steps 6 to 10 are a copy of steps 2 to 5, using different vertices and sides. Since the two developments are substantially identical, the reasons will be identical:

  reason 7 = reason 8 = reason 2 = reason 3 = "definition of sine in right triangle"

maximum area = xy = (16)(32) = 512 ft2

to maximize the area of the garden, the side of the fence parallel to the side of the house should be 32 ft long, and the other two sides should both have length 16 ft.'

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