Question

pot ? (1) The volume of a' right circular cone is 1232 cc. If the diameter of the base of the cone be 28 cm, then what will be the curved surface area of the cone ? (ii) The ratio of the radius of base and height of a right circular cone is 4 : 3; If the area of the base of the cone be 154 sq-cm, then what will be the curved surface area of the cone ? (iii) The radius of base and height of a right circular cone-shaped pot are 21 cm and 28 cm respectively. Then what will be the curved surface area, whole surface area and volume of the (iv) The ratio of the radius and slant height of a right circular cone is 4 : 7. If the curved surface area of the cone be 792 sq-cm, then what will be the volume of the cone ? (v) The circumference of the base of a right circular cone-shaped tent is 88 metres and its height is 2 metres. How many length of canvas will be required to cover the tent if the breadth of the canvas be 2 metres ?​

Answer 1

Answer:

h is 6cm

Step-by-step explanation:

(i) The volume of a' right circular cone is 1232 cc. If the diameter of the base of the cone be 28 cm, then what will be the curved surface area of the cone ?

answer ,

formula of volume of cone = ⅓ pie r²h

therefore 1232 = ⅓ x 22/7 × 14 ×14 × h

h = 1 x 22 x 14 x14

3x 7 x 1232

h = 3 x 2

h = 6

therefore height of cone is 6 cm