Need help please help very quickly!

Question

Need help please help very quickly!

1.) Identify the volume of a cone with a base area 25π m² and a height equal to three times the radius.

A.) V = 392.7 m³

B.) V = 6135.9 m³

C.) V = 209.4 m³

D.) V = 2536.2 m³

2.) A pyramid arena in Galveston, TX is a rectangular pyramid with a base area of 70,840 ft² and a height of 12 stories. Each story is approximately 10 feet. Estimate the volume in cubic feet.

A.) 283,360 ft³

B.) 850,080 ft³

C.) 8,500,800 ft³

D.) 2,833,600 ft³

Please need help very quickly!

Answer 1

1. V = Bh/3 = Br = 125pi = 393m^3
2. V= Bh/3 = 70840 * 120/3 = 2833600