7.11C Mini-Assessment

What is the value of x?

• 76°

• 80°

• 66°

• 130°

What are the measures of the two angles in the sketch?

• 39° and 131°

• 40° and 140°

• 39° and 141°

• 42° and 138°

What are the measures of the three angles of the triangle?

• 32°,69°,and 79°

• 32°, 68°, and 78°

• 32°, 65°, and 75°

• 32°, 64°, and 74°

Look at the sketch shown below. Congruent vertical angles are shown.

• 20°

• 10°

• 27°

• 14°

Lines m and n shown below are parallel lines.

• 20°

• 142°

• 148°

• 128°

What is the value of x in the measure of the angle?

• 24°

• 26°

• 12°

• 20°

The width of a rectangle is 10 inches less than the length, x, of the rectangle. The sum of the length and width is 60 inches. Which of the following is the length of the rectangle?

• 35

• 36

• 25

• 26

The three side lengths of a triangle are represented by x, (x+10) and (2x+5) units. The perimeter of the triangle is 105 units. Which of the following is the value of x?

• 30

• 28

• 23

• 22.5

What is the value of x?

• 30°

• 40°

• 50°

• 80°