Guest wrote:The length of a rectangle is 4 times its breadth. If the length of its diagonal is 4 root17 wt is its perimeter and area
It's quit easy
In rectangle ABCD,
.
suppose breadth of the rectangle=b AB=b . . BC=length=4b
Given:AC=4 root 17
Therefor square of AC=square of AB and square of BC
=4 root 17 square's=b square + 4b whole square
On further simplification
16*17=17b square
16*17/17=b square
16=b square
therefore b=4
therefore AB=b=4 and BC=4b=4*4=16
area=l*b
=16*4
=64
perimeter=2[l+b]
=2[4+16]
=2[20]
=40
hope u understand