3 years ago

Two similar pyramids have base areas of 122 cm? and 16 cm? The surface area of the larger pyramid is 56 cm

Mathematics

1 answer:

Komok [63]3 years ago

8 0

Answer:

42.7 cm sq.

Step-by-step explanation:

small/large = 16 / 122

16/122 = S / 56

S = 56 * (16/122) = 7.34...

however not in the choice

ah ha..

You meant : 12.2 sq. cm : 16 sq. cm = small / large

so 12.2 / 16 = S / 56 cm

S = 42.7 sq. cm

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