The perimeter of the rectangle is 20cm. If the length of the rectangle is 6cm, then its breadth will be ?
a) 4 cm
b) 6 cm
c) 10 cm
d) 14 cm
8th std from chp. Equation in one variable
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Answer:
4 cm
Step-by-step explanation:
let the breath be X
Perimeter of rectangle = 2(l+b)
= 20 = 2(6+ b)
= 20/2 = 6+ b
= 10 = 6+ b
= b. = 10 - 6
= b = 4
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