Find the perimeter of the shape below: a.)17.6 b.)21.4 c.)26.7 d.)32.9

Answer

B.)21.4

Explanation
A(-4, 3), B(0,2), C(2,4) and D(0,-3)

AB = √(1²+4²) = √17 =4.12
BC = √(2²+2²) = √8 = 2.83
CD = √(2²+7²) = √53 = 7.28
AD = √(4²+6²) = √52 =7.21

Perimeter = 4.12+2.83+7.28+7.21 = 21.44

To the nearest tenth the answer is 21.4.

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