question_answer

A tent is made in the form of a frustrum A of a right circular cone surmounted by another right circular cone B. The diameter of the ends of the frustrum A are 8 m and 4 m, its height is 3 m and the height of the cone B is 2 m. What is the area of the canvas required for the tent?

A)  \[\text{86}.\text{75 }{{\text{m}}^{\text{2}}}\]                 

B)  \[\text{85}.\text{77 }{{\text{m}}^{\text{2}}}\]

C)  \[\text{86}.\text{77 }{{\text{m}}^{\text{2}}}\]                 

D)         \[\text{87}.\text{67 }{{\text{m}}^{\text{2}}}\]