Question

The perimeter of parallelogram ABCD is 86 cm AD is 10 cm more than twice AB. Find the lengths of all four sides of ABCD.

Answer 1

AD=26.5 cm, AB= 16.5 cm, CD= 16.5 cm, and BC= 26.5 cm

Explanation:

2(AD)+2(AB)=86

AD=10+AB

2(10+AB)+2(AB)=86

20+2(AB)+2(AB)=86

4(AB)=66

(AB)=16.5 or 16
`(1)/(2)`

AD=10+16.5

AD= 26.5