Math, asked by durgesh816, 4 months ago

The diameter of the base of a cone is 10.5 cm, and its slant height is 10 cm. The curved surface area is:



150 sq.cm

b. 165 sq.cm

c. 177 sq.cm
The diameter of the base of a cone is 10.5 cm, and its slant height is 10 cm. The curved surface area is:
1 point
150 sq.cm
b. 165 sq.cm
c. 177 sq.cm
d. 180 sq.cm
d. 180 sq.cm​

Answers

Answered by SwiftTeller
33

★Question:-

The diameter of the base of a cone is 10.5 cm, and its slant height is 10 cm. The curved surface area is:

1 point

150 sq.cm

b. 165 sq.cm

c. 177 sq.cm

d. 180 sq.cm

★Answer:-

●Given:-

Diameter = 10.5

Radius =  \longmapsto \frac{10.5}{2}  \\  \\  \longmapsto5.2cm

Slant Height = 10cm

●Find:-

C.S.A. of cone

●Solution:-

c.s.a. \: of \: cone \:  \longmapsto\pi \: r \: l \\  \\  \longmapsto \:  \frac{22}{7}  \times 5.2 \times 10 \\  \\  \longmapsto  \frac{1144}{7}  \\  \\  \longmapsto163.4 {cm}^{2}

★Final Answer:-

So, The Final Answer Is

 \longmapsto163.4 {cm}^{2}

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