Write the total surface area of a right circular solid cone having radius $10 c m$ and slant height $25 c m$ (Take $π = \frac{22}{7}$ )

1100 {c m}^{2}

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2100 {c m}^{2}

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1150 {c m}^{2}

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1200 {c m}^{2}

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Solution

The correct option is A $1100 {c m}^{2}$
Total surface area of cone $= π r l + π r^{2} π r (l + r) = \frac{22}{7} \times 10 \times (25 + 10) = \frac{22}{7} \times 10 \times 35$
TSA $= 1100 {c m}^{2}$

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Similar questions

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Write the total surface area of a right circular solid cone having radius 10 cm and slant height 25 cm (Take π=227)

The correct option is A 1100 cm2Total surface area of cone=πrl+πr2πr(l+r)=227×10×(25+10)=227×10×35 TSA=1100cm2

Write the total surface area of a right circular solid cone having radius $10 c m$ and slant height $25 c m$ (Take $π = \frac{22}{7}$ )

The correct option is A $1100 {c m}^{2}$
Total surface area of cone $= π r l + π r^{2} π r (l + r) = \frac{22}{7} \times 10 \times (25 + 10) = \frac{22}{7} \times 10 \times 35$
TSA $= 1100 {c m}^{2}$