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What is the surface area of this figure in square centimeters?
a rectangular prism with dimensions, right triangle base 3 cm by 4 cm, the height of the prism is 7 cm

Answer Choices:
75
60
96
84

What is the surface area of this figure in square centimeters a rectangular prism with dimensions right triangle base 3 cm by 4 cm the height of the prism is 7 class=

Respuesta :

Answer:

96cm

Step-by-step explanation:

front/back triangles: (4 * 3) / 2 = 6cm

bottom rectangle: 4 * 7 = 28cm

side rectangle (left): 3 * 7 = 21cm

slanted rectangle: pythagoras - 3^2 + 4^2 = x^2

9 + 16 = x^2

25 = x^2

square root of 25 = 5

x = 5

7 * 5 = 35cm

6 * 2 + 28 + 21 + 35 = 96cm
96 is the answer to your question

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