Answer:
The volume of the triangular prism is 
Step-by-step explanation:
we know that
The volume of the triangular prism is equal to

where
B is the area of the triangular face
L is the length of the prism
step 1
Find the area of the triangular face
The area of a triangle is equal to

we have

substitute

step 2
Find the volume
we have


substitute in the formula of volume


Answer:
Figures
figure 2.1
Figure 2.1
figure 2.10
Figure 2.10
figure 2.12
Figure 2.12
figure 2.13
Figure 2.13
Step-by-step explanation:
X=-2x-5 x=3
x=-2(3)-5
x=-6-5
x= -11
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