Unit 4 Geometry Review

Front

What are complementary angles?

Back

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

Front

What are supplementary angles?

Back

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

Front

What is the definition of vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal.

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 × base × height.

Front

How do you find the area of a composite figure?

Back

To find the area of a composite figure, break it down into simpler shapes, calculate the area of each shape, and then sum them up.

Front

If angle A is 75 degrees, what is the measure of its complementary angle?

Back

15 degrees.

Front

If angle B is 120 degrees, what is the measure of its supplementary angle?

Back

60 degrees.

Front

What is the area of a rectangle with a length of 10 cm and a width of 8 cm?

Back

80 cm².

Front

What is the area of a triangle with a base of 10 cm and a height of 5 cm?

Back

25 cm².