4 Find the height of a cone whose diameter is 30 m and slant height is 25 m - Maths - Circles

Question

4 Find the height of a cone whose diameter is 30 m and slant height
is 25 m

5 In the given figure, O is the centre of the circle The angle
subtended by the arc BCD at the centre is 140° BC is produced
to P, determine ∠BAD and ∠DCB

Sanjari Kalantri · Accepted Answer

Dear Student,

4) Given: Diameter = 30cm ⇒ Radius = r = 15m, Slant height = l = 25mLet h be the height of the cone
Then, l2 = r2 + h2⇒ 252 - 152 = h2⇒ h2 = 400, or h = 20m

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https://www meritnation
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4. Find the height of a cone whose diameter is 30 m and slant height is 25 m. 5. In the given figure, O is the centre of the circle. The angle subtended by the arc BCD at the centre is 140°. BC is produced to P, determine ∠BAD and ∠DCB.

4. Find the height of a cone whose diameter is 30 m and slant height is 25 m.

5. In the given figure, O is the centre of the circle. The angle subtended by the arc BCD at the centre is 140°. BC is produced to P, determine ∠BAD and ∠DCB.