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azamat
2 years ago
11

Two identical square pyramids were joined at their bases to form the composite figure below. 2 square pyramids have a base of 24

centimeters by 24 centimeters. The triangular sides have a height of 5 centimeters. [Not drawn to scale] Which expression represents the total surface area, in square centimeters, of the figure? 8 (one-half (24) (5)) 8 (one-half (24) (13)) (24) (24) + 8 (one-half (24) (5)) (24) (24) + 8 (one-half (24) (13))

Mathematics
2 answers:
IRINA_888 [86]2 years ago
7 0

Answer:

A

Step-by-step explanation:

i took the the quiz

Airida [17]2 years ago
6 0

Answer:

8[\frac{1}{2}(24)(5)] cm²

Step-by-step explanation:

Surface area of the composite figure = Surface area of the lateral surfaces of the given pyramids

Lateral surface area of a square pyramid = 4

Therefore, lateral surface area of the pyramid

= 4[\frac{1}{2}(24)(5)]

Now lateral surface area of the composite figure = 2(lateral surface area of two pyramids)

= 8[\frac{1}{2}(24)(5)]

Therefore, Expression for the surface area of the given composite figure is,

8[\frac{1}{2}(24)(5)] cm²

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