contestada

1. A triangle-shaped machine part has sides of 21 /2 inches, 31 /4 inches, and 5 inches. The triangle's perimeter is A. 103 /4 inches. B. 113 /8 inches. C. 101 /8 inches. D. 111 /2 inches.

Respuesta :

Spymore

The perimeter of a triangle is the sum of its sides​

​Perimeter = 21/2 inches + 31/4 inches + 5 inches =

​Perimeter = 21*2/2*2 inches + 31/4 inches + 5*4/4 inches =

Perimeter = 42/4 inches + 31/4 inches + 20/4 inches =​

Perimeter = (42 inches + 31 inches + 20 inches)/4 = 93/4 inches

Answer : 93/4 inches​

Hope this helps!​​​​​

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