Answer:
The volume of the pyramid is
Step-by-step explanation:
we know that
The volume of the triangular pyramid is equal to
where
B is the area of the triangular base
H is the height of the pyramid
step 1
Find the area of the base B
we have
substitute
step 2
Find the volume
we have
substitute
Using the law of cosin
cos(angle) = adjacent leg / hypotenuse
We fill in what we know and solve for x:
cos(30) = x / 10
x = cos(30) * 10
x = 5 SQRT(3)
Answer:
149? I could be wrong I haven't done this type of math in a while.
Step-by-step explanation:
From B to D, that angle would be 180. so 180 - 31 = 149
Oh yeah that’s ok for dodo me and green brown green orange brown green