Part A:
For the parallelograms it is shape 5.
For the rectangles it is the shapes 1 and 3
For other it is the shapes 2 and 4
Part B:
It would have the shapes 1, 3 and 5.
Part C:
All quadrilaterals are not parallelograms because some quadrilaterals do not have any congruent sides
The answer is B.
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The triangles on the two ends are congruent. So, to find the prism area, it is enough to take the area of one of the triangles and multiply it by the prism depth, which is 20 units.
Use the Pythagorean theorem to find the height of the triangle. 5^2 - 3^2 = 4^2, so the height is 4. Multiply half times height times base: 1/2 x 4 x 3 = 6. Multiply that by the depth, 20. 6x20=120. The answer is in cubic units, or units^3
90 miles per hour is its average speed.