How many times the whole surface area of a right circular cone will be increased when the radius of base and slant height of the cone be both doubled ?Solution in Bengali

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

The diameter of the base of a right circular cone is 6 cm and height is 4 cm . Then the curved surface area of the cone is

If the length of the diagonal of a cube be $4\sqrt{6}$cm, then the length of the diagonal of each surface of the cube will be

A hollow cylindrical pipe open at two ends is made of iron and its thickness is 2 cm. If the external diameter of the pipe be 50 cm and length be 140 cm, how many cubic centimetres of iron does it contain ?

If the numerical values of the area of the base and the volume of a right circular cone of radius 4cm be equal , then the slant height of the cone is

If the height and the area of base of a right circular cone be increased by 4 times, then how many times the volume of the cone will be increased ?

The radius of base and height of a right cone are equal . Keeping radius constant , if the slant height of the cone is increased by $\sqrt{2}$ times , then the relation between height and radius will be

The curved surface area of a right circular cone = ___________$\times$ slant height .

The slant height of a right circular cone is 3 times of its radius of base . If the whole surface area of the cone be $50.24$sq-cm, then what will be the height of the cone ?

The sum of the slant height and radius of base of a right circular cone is 16 cm. If the height of the cone be 8 cm , then what will be the slant height of the cone ?

If a right circular cone has a lateral surface area of $6\pi$ and a slant height of 6, what is the radius of the base ?

The curved surface area of a right circular cone of radius 14 cm is 440 sq cm. What is the slant height of the cone?

The radius of the base of a right circular cone is 12 m. If the slant height of the cone is 15 m, find the height of the cone.

आधार की त्रिज्या 7 cm तथा तिर्यक ऊँचाई 10 cm वाले लम्ब वृत्तीय शंकु का वक्र पृष्ठीय क्षेत्रफल होगा -

आधार की त्रिज्या 7 cm तथा तिर्यक ऊँचाई 14 cm वाले लम्ब वृतीय शंकु का कुल पृष्ठीय क्षेत्रफल होगा -