serenityking305 serenityking305

05-11-2019
Mathematics

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What is the surface area of a square pyramid that has a base length of 5 inches and triangular faces that are 9 inches tall

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1klassynupe 1klassynupe

05-11-2019

Answer:

115 in²

Step-by-step explanation:

SA = Area of triangular surfaces + area of the square base

SA= 2bh + b²

SA = 2(5)(9)+5²

SA = 90+25

SA = 115

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