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sp2606 [1]
3 years ago
14

The area of a square is 9 centimeters squared (cm^2) If the sides of the square are doubled in length, what is the new area, in

centimeters squared, of the enlarged square?
A: 24 cm^2
B: 18 cm^2
C: 81 cm^2
D: 36 cm^2
Mathematics
2 answers:
Mice21 [21]3 years ago
7 0

Answer:

The question says area of a square = 9 cm squared.

And they said if the sides are doubled in length what is the new length

so new length = 9 cm^2 × 9 cm^2

which should give you 81cm^2

therefore your answer should be = C

Sauron [17]3 years ago
4 0
I think the answer is B because 9 cm times 2 cm equal 18
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SHOW YOUR WORK! Marking the best response with brainliest:) thank u
sdas [7]

Step-by-step explanation:

Perimeter of a rectangle = 2l + 2w

where

l is the length

w is the width

From the question

The length is 3x + 7

The width is 2x + 2

The perimeter is

<h3>2( 3x + 7) + 2( 2x + 2)</h3>

Simplify

6x + 7 + 4x + 4

Group like terms

6x + 4x + 7 + 4

We have the final answer as

<h3>10x + 11</h3>

Hope this helps you

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