Unit 2A Part 2 Final Exam Review - Special Angles 4th block

Front

What are special angles in geometry?

Back

Special angles are commonly used angles in geometry, including 0°, 30°, 45°, 60°, 90°, 120°, 135°, 150°, 180°, 270°, and 360°. They often have specific trigonometric values that are easy to remember.

Front

What is the value of x if 2x + 5 = 35?

Back

x = 15

Front

What is the sum of the angles in a triangle?

Back

The sum of the angles in a triangle is always 180°.

Front

Define congruent angles.

Back

Congruent angles are angles that have the same measure.

Front

What is the value of x if 3x - 7 = 32?

Back

x = 13

Front

What are supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180°.

Front

What is the value of y if x = 20 and y + x = 100?

Back

y = 80

Front

What is the value of x if 5x + 10 = 60?

Back

x = 10

Front

What is the relationship between complementary angles?

Back

Complementary angles are two angles whose measures add up to 90°.

Front

If angle A = 45° and angle B = 45°, are they congruent?

Back

Yes, angle A and angle B are congruent because they have the same measure.