Question

lesson 17
date
surface area of right rectangular and right triangular prisms
right rectangular prism

1. consider the right rectangular prism.

(the prism has dimensions: 3 ft, 5 ft, 7 ft)

Explanation:

Step1: Recall surface area formula

La fórmula del área de superficie de un prisma rectangular derecho es $SA = 2(lw + lh + wh)$, donde $l=7$ ft, $w=5$ ft, $h=3$ ft.

Step2: Calcular cada producto interno

$lw = 7 \times 5 = 35$, $lh = 7 \times 3 = 21$, $wh = 5 \times 3 = 15$

Step3: Sumar los productos

$35 + 21 + 15 = 71$

Step4: Multiplicar por 2

$SA = 2 \times 71$

Answer:

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