Question

Find the area of rectangle whose perimeter is 47m and length is 15m.

Answer 1

Answer:

127.5 which is rounded of to 128

Step-by-step explanation:

perimeter= 2L + 2B

            47   = 2(15) + 2B

             47 = 30 + 2B

             47 - 30 = 2B

             17=2B

              17/2 =B

                8.5 = B

Area= L multiply by B

A= 15 multiply by 8.5

A= 127.5

Answer 2

Answer:

Step-by-step explanation:

Perimeter Of Rectangle = 47m

Length = 15m

P = 2(L + B)

47m = 2(15m + B)

47m = 30m + 2B

47m - 30m = 2B

17m = 2B

17m/2 = B

8.5m = B

Area of Rectangle = L × B

A = 15m × 8.5m

A = 127.5 m^2