Math, asked by marigoldblackpink, 10 months ago

Find the surface area of this pyramid.

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Answered by thakurji80

Answer:

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Answered by vFi

Answer:

360 cm²

Step-by-step explanation:

First, we could find and identify the area of the bottom of the pyramid.

Bottom: 12 (length) × 12 (width) = 144 cm²

Next, we find the area of all the lateral faces of the pyramid. We are given the height of each triangle face on the pyramid.

One lateral face: 12 (base) × 9 (height) ÷ 2 = 54 cm²

We then multiply the amount of centimeters in one lateral face by four, since there are four lateral faces. 54 × 4 = 216 cm². Lastly, we add the area of the bottom and the area of the lateral faces to get a final answer of 360 cm² for the surface area of the pyramid.

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