195k views
0 votes
The volume of a right triangular prism is 72 cubic feet. The height of the prism is 9 feet. The triangular base is an isosceles right triangle. What is the area of the triangular base? What is the length of edge DF?

User Plochie
by
8.3k points

2 Answers

3 votes

Answer:

Explanation:

volume = area of base * height = area of base * 9 = 72

-> area of base = 72/9 = 8

let a,b,c be the length of sides of isosceles right triangle base

we have a = b and a*b/2 = 8 ft2

-> a*a/2 = 8ft2

-> a*a = 16

-> a=4ft=b

have c^2 = a^2 + b^2 = 16 +16 = 32

-> c =
√(32) = 5.656 ft

Since i dont know that is DF, i calculate both a,b and c

The volume of a right triangular prism is 72 cubic feet. The height of the prism is-example-1
User Legalize
by
8.6k points
2 votes

Answer:

8 and 4

Explanation:

User Herrstrietzel
by
7.5k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories