A flagpole casts a shadow 40 feet long when the measurement of the angle of elevation to the sun is 31°20'. How tall is the flagpole.

step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

ya

60: 45 =12: 9 =4: 3 so the answer is 4: 3

3. 8,935,200 minutes

4. 227,040 feet

your answer is b.

1,333 cubic feet  

and i know this one is right.