• using notation such as ∠ABC and ∠x to name angles

• estimation and measurement of angles in degrees

What will we learn today?

Geometry Angles

Let's try this out!

Right Angle

Right Angle

This angle is greater than 90°.

Right Angle

This angle is greater than 90°. This angle is smaller than 90°.

1. In the figure, name the two angles that are greater than 90°.

1. In the figure, name the two angles that are greater than 90°.

∠d and ∠a are greater than 90°.

2. In the figure below, which angle is smaller than a right angle?

2. In the figure below, which angle is smaller than a right angle?

∠z and ∠y are greater than 90°.

∠y is 90°.

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