Need help on numbers 3, 4, and 5 ill mark brainliest if they are right
Please explain if you can on how you got the answer

Step-by-step explanation:

3.   V triangular prism =B*h=18*12*35=7560 cubic feet

4. V cone= pi*r^2*h=pi*8^2*9=3.14*64*9=1808.6 cubic feet

5.  V=B*h/3=15*9*13/3=5*9*13=585 cubic milimeters

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq