A rectangle has perimeter 56 cm and length 21 cm. What is its width?

Mathematics

2 answers:

Ymorist [56]2 years ago

5 0

Answer:

width=7 cm

Step-by-step explanation:

perimeter=2(lengths+width)

56 =2(21+x)

56 =42+2x

56-42 =2x

2x = 14

x =7

therefore the width=7 cm

Misha Larkins [42]2 years ago

4 0

<h3>answer the answer is 7. </h3>

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