Question

the perimeter of of a rectangle is 13 cm and its width is 11/4 cm . find its area

Answer 1

Answer:

perimeter of rectangle = 2( length + breath)

13= 2( length + 11/4 )

13= 2× lenght + 2×11/4

13 = 2L +11/2

13-11/2 = 2L

26-11/2 = 2L

15 /2 = 2L

15/2×2 =L

15 cm = L

Area of rectangle = L ×B

= 15×11/4

= 41.25 cm