Lesson 12: Practice Problems

Problem 1

Select all the prisms.
For each prism, shade one of its base

Five prisms of different shapes and sizes labeled A-E.

Problem 2

The volume of both of these trapezoidal prisms is 24 cubic units. Their heights are 6 and 8 units, as labeled. What is the area of a trapezoidal base of each prism?

Two trapezoid prisms of differing sizes, one height is 6 units and one is 8 units.

Problem 3 From Unit 7 Lesson 2

Two angles are complementary. One has a measure of 19 degrees. What is the measure of the other?

Problem 4 From Unit 7 Lesson 2

Two angles are supplementary. One has a measure that is twice as large as the other. Find the two angle measures.

Problem 5 From Unit 6 Lesson 22

Match each expression in the first list with an equivalent expression from the second list.

$7 (x + 2) - x + 3$
$6 x + 3 + 4 x + 5$
$\frac{- 2}{5} x - 7 + \frac{3}{5} x - 3$
$8 x - 5 + 4 - 9$
$24 x + 36$

$\frac{1}{5} x - 10$
$6 x + 17$
$2 (5 x + 4)$
$12 (2 x + 3)$
$8 x + (- 5) + 4 + (- 9)$

Problem 6 From Unit 4 Lesson 8

Clare paid 50% more for her notebook than Priya paid for hers. Priya paid $x$ for her notebook and Clare paid $y$ dollars for hers. Write an equation that represents the relationship between $y$ and $x$ .