Question

the perimeter of a rectangular painting is 370 cm. If the width of the painting is 87 cm, what is it's length?​

Answer 1

196 cm

Explanation:

Perimeter of rectangle=2(L+W)

P=370 cm

W=87 cm

L=?

P=2(L+W)

370 cm=2(L+87 cm)

370 cm=2L+174 cm

379 cm - 174 cm=2L

2L=196

2/2L=196/2

L=98 cm