Question

the perimeter of a parallelogram is 26 cm therefore the small side is 5 cm long find the length of its longest side​

Answer 1

Answer:

8cm

Step-by-step explanation:

as opposite sides of a parallelogram are equal

so

5cm +5cm +x +x =26cm

10cm +2x = 26 CM

2x =(26-10)CM

2x=16cm

x=8cm

Answer 2

Answer:

as we know that opposite side of parallelogram is equal.

Step-by-step explanation:

A _____x______B

/ /

5cm / 26cm /

/ /5cm

D /________x____/C

hear,

AD=BC=5cm(small side)

now take AB=DC=X

sum of all side is 26cm.

AD+BC+X+X=26cm

5cm+5cm+X+X=26cm

10cm+2X=26cm

2X=26cm-10cm

2X=16cm

X=16cm/2

X=8cm

{hence prove}