Question

the base perimeter of a right cylinder is 44cm and its csa is132cm find its height

Answer 1

Answer: 21 cm

Step-by-step explanation:

base perimeterr of a right cylinder= 44cm.

Perimeter( circumference ) of base cylinder = 2πr

We have to find radius so .

44cm = 2× 22/7 ×r

2×22/7×r = 44cm

r = 44×7/2×22 cm

r = 7 cm

So radius of base of cylinder = 7 cm

Curved surface area = 132 cm .

According to question .

Curved surface area = 2πrh

132 cm = 2πrh

132 cm = 2 × 22/7 × 7 × h

2 × 22/7 × h = 132 cm

h = 132 ×7 /2×22

h = 21 cm

Height = 21 cm

Answer 2

Answer: 21 cm

Step-by-step explanation:

base perimeter of a right cylinder= 44cm.

Perimeter( circumference ) of base cylinder = 2πr

We have to find radius so .

44cm = 2× 22/7 ×r

2×22/7×r = 44cm

r = 44×7/2×22 cm

r = 7 cm

So radius of base of cylinder = 7 cm

Curved surface area = 132 cm .

According to question .

Curved surface area = 2πrh

132 cm = 2πrh

132 cm = 2 × 22/7 × 7 × h

2 × 22/7 × h = 132 cm

h = 132 ×7 /2×22

h = 21 cm

Height = 21 cm