M8 NC Check-In Review #1

Front

What is the measure of angle x if it is given that x + 3x = 360°?

Back

x = 90°.

Front

Solve the inequality: 4 - 9x ≤ 40.

Back

x ≥ -4.

Front

What is the measure of angle A if it is given that angle A + 20° = 64°?

Back

Angle A = 44°.

Front

Which of the following sets of angles can form a triangle? A) 120°, 50°, 20° B) 100°, 200°, 60° C) 30°, 50°, 80° D) 40°, 50°, 90°

Back

D) 40°, 50°, 90°.

Front

Solve for x: (3/4)(6x + 2) = 15.

Back

x = 3.

Front

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

Back

180°.

Front

Define complementary angles.

Back

Two angles that add up to 90°.

Front

Define supplementary angles.

Back

Two angles that add up to 180°.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height.

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.