Question

: find the curved surface area of the cylinder whose circumference of the base is 22cm and height is 3m: which one of the following option is correct
i) 44 cm2

ii) 66cm2


iii) 77cm2

iv) 22cm2

Q: what will be the diameter of a sphere whose surface area is 55.44m^2?
i) 4.6m
ii)4.2m
iii)3.4m
iv)2.4m

answer with full step by step explanation.!

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Answer 1

Answer:

1) 66cm

Step-by-step explanation:

Given:−

Given:−

• Circumference of the base = 22 cm

• Circumference of the base = 22 cm• Height of the cylinder = 3m

• Circumference of the base = 22 cm• Height of the cylinder = 3m= 3 × 100cm

• Circumference of the base = 22 cm• Height of the cylinder = 3m= 3 × 100cm= 300cm

Find the curved surface area of a cylinder?

circumference of the base = 22 cm

circumference of the base = 22 cm 2πr = 22

circumference of the base = 22 cm 2πr = 22 2 × 22/7 × r = 22

circumference of the base = 22 cm 2πr = 22 2 × 22/7 × r = 22 r = (22 × 7)/(2 × 22)

circumference of the base = 22 cm 2πr = 22 2 × 22/7 × r = 22 r = (22 × 7)/(2 × 22)r = 7/2

circumference of the base = 22 cm 2πr = 22 2 × 22/7 × r = 22 r = (22 × 7)/(2 × 22)r = 7/2Curved surface area = 2πrh

circumference of the base = 22 cm 2πr = 22 2 × 22/7 × r = 22 r = (22 × 7)/(2 × 22)r = 7/2Curved surface area = 2πrh\2 × 22/7 × 300

circumference of the base = 22 cm 2πr = 22 2 × 22/7 × r = 22 r = (22 × 7)/(2 × 22)r = 7/2Curved surface area = 2πrh\2 × 22/7 × 300\44/7 × 7/2 × 300

circumference of the base = 22 cm 2πr = 22 2 × 22/7 × r = 22 r = (22 × 7)/(2 × 22)r = 7/2Curved surface area = 2πrh\2 × 22/7 × 300\44/7 × 7/2 × 30022 × 300

circumference of the base = 22 cm 2πr = 22 2 × 22/7 × r = 22 r = (22 × 7)/(2 × 22)r = 7/2Curved surface area = 2πrh\2 × 22/7 × 300\44/7 × 7/2 × 30022 × 300 6600cm²

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