Question

द रेडियस ऑफ द बेस ऑफ ए राइट सर्कुलर कोन इस बार 3 सेंटीमीटर एंड इट्स हाइट इज 10.5 सेंटीमीटर फाइंड द टोटल सरफेस एरिया ऑफ कौन ​

Answer 1

Answer:

Here, `h = 24 cm and r = 7 cm`

Let the slant height be l cm. Then,

`l = sqrt(h^(2) + r^(2)) = sqrt((24)^(2) + (7)^(2)) = sqrt(625) = 25`

`:.` slant height `= l cm = 25 cm`

Volume of the cone `= (1)/(3) pi r^(2)h`

`= ((1)/(3) xx (22)/(7) xx 7 xx 7 xx 24) cm^(3)`

`= 1232 cm^(3)`

Curved surface area of the cone `= pi rl`

`= ((22)/(7) xx 7 xx 25) cm^(2)= 550 cm^(2)`

Total surface area of the cone `= pi r(l + r)`

`= [(22)/(7) xx 7 xx (25 + 7)] cm^(2)`

`= 704 cm^(2)

Step-by-step explanation:

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Answer 2

refer to attachment please.