Question

A rectangle is twice as long as it is wide. Calculate its perimeter if its area is 450 cm²​

Answer 1

Thank me please ahhh

Answer 2

Answer:

lets assume that the width of rectangle is x

so length of rectangle = 2x

area of rectangle= L * B

perimeter of rectangle=2( L + B)

where L is length of rectangle and B is breath of rectangle

so

=> 450 cm² = L * B

=> 450 = 2x * x

=> x² = 450/2= 225

=> x = 15

therefore width of rectangle is 15 cm

and length of rectangle is 30 cm

so perimeter of rectangle= 2( L + B)

=> perimeter = 2( 30 + 15)

=> perimeter = 2 * 45= 90 cm