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4 years ago

7

What is the surface area of this right rectangular prism? Enter your answer in the box.

2 answers:

shutvik [7]4 years ago

7 0

Answer: $76\ m^2$

Step-by-step explanation:

The surface area of a rectangular prism is given by :-

$\text{Surface area}=2(lw+wh+hl)\\\\\Rightarrow\ \text{Surface area}=2(4\cdot5+2\cdot5+2\cdot4)\\\\\Rightarrow\ \text{Surface area}=2(20+10+8)\\\\\Rightarrow\ \text{Surface area}=2(38)\\\\\Rightarrow\ \text{Surface area}=76\ m^2$

Hence, he surface area of this right rectangular prism= $76\ m^2$

Anon25 [30]4 years ago

3 0

Hello!

We must use a certain formula to calculate the surface area of a rectangular prism. The formula is:

A = 2 (wl + hl + hw)

Substitute:

A = 2(4 × 5) + (2 × 5) + (2 × 4)

A = 2(20 + 10 + 8)

A = 76 cm squared

ANSWER:

The surface area of the right rectangular prism is 76 centimetres squared.

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