The perimeter of a rectangle is 42 cm and its width is 12 cm. find its length
Answers
Answered by
1
Answer:
Step-by-step explanation:
42 = 2( 12 + x )
42 = 24 + 2x
42÷24 = 2x
42/24 × 2 = x
7/2 = x
3.5 = x
Answered by
0
Answer:
length = 12
Step-by-step explanation:
perimeter of rectangle=42 cm
width=12 cm
let length of rectangle= L cm
perimeter = 2(l+b)
ATQ
2( l+b) = 42
2( L+ 12) = 42
L+12= 42/2
L +12 = 21
L= 21-12
L = 9
length of rectangle= 9 cm
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