3 years ago

Answer this question please

Mathematics

1 answer:

Ann [662]3 years ago

5 0

9514 1404 393

Answer:

A. 500 cm²

Step-by-step explanation:

The height of the piece of cardboard is the same as the height of the prism: 20 cm.

The width of the piece of cardboard is the sum of the side lengths of the prism: 7 cm + 9 cm + 9 cm = 25 cm.

The area of the cardboard is the product of its height and width.

A = HW

A = (20 cm)(25 cm) = 500 cm²

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