To make a cone, spin a right triangle with sides of 3 cm, 4 cm, and 5 cm by 3 cm. The volume of the resulting cone is:
A. 12 cm3
B. 15 cm3
C. 16 cm3
D. 20 cm3
Answer:A
To make a cone, spin a right triangle with sides of 3 cm, 4 cm, and 5 cm by 3 cm. The volume of the resulting cone is:
A. 12 cm3 B. 15 cm3 C. 16 cm3 D. 20 cm3
Explanation: We can see that r = 3 cm and h = 4 cm.Volume = 1/3 x 32 x 4 cm3 = 12 cm3 Volume = 1 /3r2h = 1/3 x 32 x 4 cm3 = 12 cm3.