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Novosadov [1.4K]
3 years ago
15

The surface area of a solid is 10 square feet. The dimensions of a similar solid are

Mathematics
1 answer:
maxonik [38]3 years ago
6 0

Answer:

90 ft²

Step-by-step explanation:

Given the sides of similar figures in the ratio a : b, then

ratio of areas = a² : b²

Here ratio of sides = 1 : 3 , thus

ratio of areas = 1² : 3² = 1 : 9

That is the surface area of the new solid is 9 times the first

SA = 9 × 10 = 90 ft²

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3 years ago
Help how do you solve this (step by step preferably please) 7^x5^y7^z
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2 years ago
The length of a rectangular book is 2 times its width. The perimeter of the book is 42 inches. Write a system of
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Answer:

Mark me as brainlist

Step-by-step explanation:

P = Perimeter            

L = Length          

W = Width

Perimeter of rectangle = L + L + W + W        

or P = 2L + 2W

You know:

P = 36 inches

L = 2W          [length is(=) 2 times it's width]

W = ?

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Substitute/plug in what you know, plug in 2W for L since L = 2W

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2 years ago
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