Question

A cone has radius 4cm and slant height 12cm. find height of the cone. ​

Answer 1

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Rᴀᴅɪᴜs (ʀ) = 4 ᴄᴍ

sʟᴀɴᴛ ʜᴇɪɢʜᴛ (ʟ) = 12 ᴄᴍ

ʜᴇɪɢʜᴛ (ʜ) = ?

ʟ² = ʜ² + ʀ²

(12)² = ʜ² + (4)²

144 = ʜ² + 16

144 - 16 = ʜ²

ʜ² = 128

ʜ = √128

ʜ = 8√2

ʜ = 8√2 ʜ = 11.31

Answer 2

Answer:

12

Step-by-step explanation: