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2 years ago

What is the surface area of the regular pyramid given below?

Mathematics

1 answer:

frosja888 [35]2 years ago

3 0

Answer:

Total Surface Area of the given regular pyramid = 153 units²

Step-by-step explanation:

Base length of the regular pyramid, l = 9 units

Base width of the regular pyramid, w = 9 units

Height of the regular pyramid, h = 7 units

Perimeter of base = 3 × 9

= 27 units

$\text{Area of base = }\frac{1}{\times Base\times Height\\\\Area = \frac{1}{2}\times 9\times 7=21.5\:\:units^2$

$\text{Now, Total Surface Area = }\frac{1}{2}\times p\times l+A\\\\\implies\text{Total Surface Area = }\frac{1}{2}\times 27\times 9+31.5$

Hence, Total Surface Area of the given regular pyramid = 153 units²

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Step-by-step explanation:

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Step-by-step explanation:

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