The length of rectangle is twice its breadth.What is the length if the perimeter is 90 cm?
Answers
The relation between length and breadth is given
length = 2 × breadth
Also, the perimeter is 90 cm
We have to find the length
perimeter = 2 ( length + breadth )
90 = 2 { 2(breadth) + breadth }
45 = 3 × breadth
breadth = 45/3
= 15
So, length = 2 × breadth
= 2 × 15
= 30
Hence, the length of the rectangle will be 30 cm
In context to question asked,
We have to determine the value of length of rectangle.
As per data,
We have,
The length of rectangle is twice its breadth.
Perimeter of rectangle = 90 cm
So, let the breadth or rectangle = x
So, the length of rectangle will be = 2x
As we know that,
Perimeter of rectangle
So, we will put the given value in above equation,
Thus we will get,
Hence, the value of length of rectangle