lateral surface area of a cylinder whose circumference is 44cm and height 10 cm is
Answers
Answered by
32
Answer:
Step-by-step explanation:
Circumference of base = 44cm
And base of cylinder is a circle
2πr=44
πr=44/2
22/7×r=22
r=7cm
Height of cylinder=10cm
Lateral surface area of cylinder=2πrh
=2×22/7×7×10
=440cm²
Answered by
6
Answer:
1)1540 cm³ = volume.
2) 440 cm² = lateral surface area of cylinder.
Step-by-step explanation:
44 cm is the circumference.
10 cm is height of cylinder.
2πr is circumference base of circular.
= 2πr = 44
= 2 × 22 / 7 × r = 44
= 44r = 44 × 7
= R = 7 cm
πr²h = volume of cylinder
= 22 / 7 × ( 7 )² × 10
= 22 / 7 × 7 × 7 × 10
= 22 × 7 × 10
= 1540 cm³
2πrh = lateral surface area
= 22 × 22 / 7 × 7 × 10
= 2 × 22 / 7 × 10
= 2 × 22 × 10
= 440 cm²
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