Question

find the curved surface area total surface area and volume of cone whose height is 28 cm and radius of base is 21 CM

plss solve this question because its urgent plss help me guys

Answer 1

Answer:

heights of surface area +radius of base

28+21 =49

Answer 2

Answer:

curved surface area of cone=528cm²

total surface area of cone=3234cm²

volume of cone=12936cm²

Step-by-step explanation:

GIVEN

HEIGHT OF CONE (H)=28cm

RADIUS OF CONE(R)=21cm

curved surface area of cone =πrl=22/7×21×28=528cm²

total surface area=πr(r+l)=22/7×21(21+28)=3234cm²

volume of cone=1/3πr²h=1/3×22/7×21×21×28=12936cm²