Question

nd the unknown side of each rec
?
Area = 96 m2
8 m
Unknown side =
Perimeter =
nd the side of each square. The
?-​unknown side and perimeter

Answer 1

Answer:

Unknown side is 12

Perimeter is 40

Step-by-step explanation:

8*s = 96

s = 12

2(8 + 12)

40

Answer 2

Answer:

Perimeter of fig. (i)=24 m

Let length of unknown side=x m

Perimeter of fig. (i)=24 m

⇒(x+5+6+8) m =24 m

⇒x+19=24

⇒x=24−19=5 m

Similarly,

Perimeter of fig. (ii)=30 cm

Let length of unknown side=x cm

Perimeter of fig. (ii)=30 cm

⇒(x+3+4+2+2+2+4+3) cm =30 cm

⇒x+20=30

⇒x=30−20=10 cm