Question

Ani have a piece of paper in the shape of sector of circle of radius 14cm with sector angle 45°. He had folded it along the length of arc to form a cone. On the basis of it answer the following questions:

(i) The length of the arc will be

(a) 11 cm

(b) 22 cm

(ii) The radius of cone formed will be

(a) 1.5 cm

(b) 1.75 cm

(iii) What is the slant height of the cone ?

(a) 7 cm

(b) 11 cm

(c) 11/2 cm

(d) 33 cm

(c) 1.25 cm

(d) none of these

(c) 14 cm

(d) none of these

(iv) What is the curved surface area of cone formed is

(a) 77 cm

(b) 77/2 cm2

(v) Area of the base of the cone is

(a) 77 cm 2

(b) 77/ 8 cm

(c) 154 cm?

(c) 66 cm 2

(d) none of these

(d) none of these​

Answer 1

Answer:

1. 22
2. 1.5 cm
3. none of these
4. 77 /2 cm sq
5. 154 cm cube

Step-by-step explanation:

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