Answer:
0.08
Step-by-step explanation:
Answer:
Step-by-step explanation:
Volume = 1/3(area of triangular base)height
To find the triangular base we would use heron formula Area = square root (s-a)(s-b)(s-c)
S = (a+b+c)/2 = 2.6 + 2.6 + 2.6 )/2
Use the identity:
tan^2 = sec^2 - 1
I attached a photo showing all the steps including the final answer.
1. $2.78
2. If it’s 20% off you save 13.90 so 69.50- 13.90 is $55.60