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Ksju [112]
3 years ago
9

The perimeter of a rectangle is 64cm.

Mathematics
2 answers:
miss Akunina [59]3 years ago
7 0

Answer:

Perimeter of a rectangle = 2(l+b)

2(28+b)=64cm

By using distributive law,

56+2b=64

2b=64-56=8

b=8 divided by 2,4

B=4

Shorter side is 4cm long

Svet_ta [14]3 years ago
6 0

Answer:

4cm

Step-by-step explanation:

28 + 28 = 56

64 - 56 = 8

8/2=4

just to check : 4 + 4 + 28 + 28 = 64

hope this helps x

brainliest plx?

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Step-by-step explanation:

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\mathrm{Apply\:FOIL\:method}:\quad \left(a+b\right)\left(c+d\right)=ac+ad+bc+bd

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Therefore, we conclude that the area of the right triangle is:

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Hence, option A is correct.                                        

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