Unit 5 review

What is the sum of the interior angles of a triangle?

• 180 degrees

• 360 degrees

• 540 degrees

• 720 degrees

What is the measure of each interior angle of a regular 20-gon?

• 162°

• 170°

• 160°

• 165°

If the sum of the measures of the interior angles of a polygon is 5400°, how many sides does it have?

• 30

• 32

• 34

• 36

If \( m\angle KLH = 134° \), solve for \( x \) in \( 4x + 9 \).

• x = 31

• x = 32

• x = 33

• x = 34

Find KL in the parallelogram where K = 7x - 2 and J = 12x - 22.

• 5

• 10

• 12

• 14

Prove whether the quadrilateral is a parallelogram using the specified method for points D(-5, -6), E(5, 2), F(4, -4), G(-6, -12).

• Use the Distance Formula

• Use the Slope Formula

• Use the Distance & Slope Formulas

• Use the Midpoint Formula

If the sum of the interior angles of a polygon is 1800°, how many sides does it have?

• 10

• 12

• 14

• 16

Determine whether the quadrilateral with vertices D(-8, 1), E(-3, 6), F(7, 4), G(2, -1) is a parallelogram using the Distance Formula.

• Yes

• No

• Cannot be determined

• Only if angles are right angles

What is the relationship between opposite angles in a rhombus?

• They are congruent.

• They are supplementary.

• They are complementary.

• They are unequal.

If the diagonals of a rhombus are 16 cm and 12 cm, what is the length of each diagonal segment?

• 8 cm and 6 cm

• 16 cm and 12 cm

• 10 cm and 8 cm

• 14 cm and 10 cm