Question

A rectangle has a perimeter of 146 cm and length 49 cm. It's width is 2a cm. What will the value of a?​

Answer 1

Answer:

a = 12 cm

Step-by-step explanation:

Perimeter = 2(length + breadth)

146 = 2(49 + 2a)

49 + 2a = 146/2 = 73

2a = 73 - 49 = 24

Thus, a = 24/2 = 12

Answer 2

Given,
A rectangle has a perimeter of 146 cm
length 49 cm
width 2a cm.
Perimeter is sum of all sides
So, 49+49+2a=146
2a = 146-98
a= 48/2
a= 24 cm




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