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Select the correct answer.

The perimeter of a rectangle is 42 inches. If the width of the rectangle is 6 inches, what is the length?
A.
12 inches
B.
15 inches
C.
21 inches
D.
40 inches

2 Answers

1 vote

Answer:

option b, 15 inches is the length of the rectangle

User Jared Dunham
by
7.7k points
2 votes

Perimeter of rectangle is:


\boxed{ \purple{ \tt \: Perimeter = 2(l + b)}}

We are given width/breadth = 6 inches


\pink{ \sf \: 42 = 2(l + 6)}


\pink{ \sf \: 21=l+6 }


\pink{ \sf \: l = 21 - 6 }


\boxed{ \red{ \rm\: l = 15 \: inches}}

User Damiqib
by
7.3k points

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