Question

the cap of a joker is of right circular cone whose radius of base is 7 cm and height is 24 cm find the area is of cardboard required to make 10 such caps

Answer 1

Answer:

hope this will help you

Step-by-step explanation:

given : radius of cone = 7cm

           height of the cone=24cm

l²=r²+ h²

l²=(7)² + (24)²

l²= 49 + 576

l²= 625

l = 25

area of a single conical cap= πrl

                                                ⇒22/7 × 7 × 25

                                                ⇒22 × 25

                                                ⇒550 cm ²

area of cardboard required to make 10 such caps = 550 × 10

                                                                                      ⇒5500 cm²

hope this will help you