Whoever answers first gets brainliest !

To find the volume of the figure, we need to take the individual volumes of both prisms and add them together.

For the rectangular prism, it is really easy, since the volume of a rectangular prism is simply length * width * height.

10 * 10 * 30 = (10 * 10) * 30 = 100 * 30 = 3000

The rectangular prism has a volume of 3000 .

For the triangular prism, you follow essentially the same rules, but you divide by 2 at the end (since a triangle is simply half a quadrilateral).

9 * 10 * 30 = (9 * 10) * 30 = 90 * 30 = 2700

2700 / 2 = 1350

The volume of the triangular prism is 1350 .

To find the total volume of the figure, we just need to add the volumes of the two prisms.

3000 + 1350 = 4350 

The volume of the figure is 4,350 .
Hope that helped! =)

This polygon has 4 sides
180(4-2) = 180(2) = 360 degree
80+90+2x + 3x = 360
170+5x = 360
5x = 190
x= 38
measure of angle t is 2(38)= 76
the answer is c. trust me
hope this !