The width of a rectangle is 8 cm less than the length. Also, if the circumference of the rectangle is 60 cm, the length is _____
1) 19 cm. 2) 11cm. 3) 10cm. 4) 20 cm
Answers
Answered by
2
Answer:
19 cm
Step-by-step explanation:
let length = x
breadth = x - 8
perimeter = 60
2(x + x - 8 ) = 60
2( 2x - 8 ) = 60
2x - 8 = 30
2x = 38
x = 19
length = 19 cm
breadth = 19- 8 = 11cm
Answered by
0
Answer:
Length = 19cm (option 1)
Step-by-step explanation:
Perimeter of rectangle is 60 cm
l = b+8
60 = 2(l+b)
60 = 2(b+8+b)
60 = 2(2b+8)
60 = 4b+16
4b = 60-16 = 44
b = 44/4 = 11
L = b+8 = 11+8 = 19
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