Question

ABCD IS A PARRARELOGRAM . The perimeter is 144 cm and BC is 20 cm then find AB.

Answer 1

Step-by-step explanation:

We are given thta ABCD is a parallelogram

i.e, AB=CD & AD=BC

so, the perimeter will be

AB+BC+CD+DA=144

AB+BC+AB+BC=144

∴ 2(AB+BC)=144

∴ AB+BC=72

∴ AB=72−BC

∴ AB=72−20

∴

AB=52 cm

Dec

Answer 2

Step-by-step explanation:

you can follow this step