Question

solve any one question​

Answer 1

Explanation:

2. The total surface area of cone = πr ( r + l )

= 704 = 22/7 × 7 ( 7 + x )

= 704/ 22 = l + 7

= 32 = l + 7

= L = 32 - 7

= 25 Answer

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Answer 2

Since Sin B = 40/41,

Let's find the value of the base=

√41 ² −40²

=√1681-1600

=√81

= 9cm

Then, Cot B= Adjacent side/ Opposite side,

= 9/40.

2) The radii if the cone is 7 cm. The total surface area of the cone is 704 sq cm. => L = 25 cm. So the slant height of the cone is 25 cm.

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