evalute the length of a rectangle is 1\3 of its breath if its perimeter is 64 m then find the length the breath of the rectangle
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Answered by
3
Answer:
Let length of rectangle=lcm
breadth of rectangle= bcm
Given length is 3 times its breadth
i.e. l= 3×b
Perimeter of the rectangle= 120 cm
i.e.2×( l+ b)=120
2×(3×b+ b)=120
2×(4×b)=120
8×b=120
b= 15 cm
Answered by
5
Answer:
Let the length of the rectangle be ‘3’ units.
Thus, the width = (1/3) x 3 = 1 unit.
The perimeter in that case would be = 2 x (1+3) = 8 units.
Now, as per the question,
8 corresponds to 100,
So 1 (width) corresponds to => 100/8 x 1 = 12.5 cm
And Length = 3 x 12.5 = 37.5 cm.
Thus, area is 37.5 x 12.5 = 468.75 sq. cm.
Hope this helps! :)
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