Question

Use the diagram to identify an angle with the given classification. 1. right angle 2. obtuse angle B D 3. straight angle 4. acute angle А F

Answer 1

You describe an angle as follow:

Angle ∠ABC: here the point in which the angle is, is the point B, just the word at the middle.

Based on the given triangle, you can consider the following:

1. right angle = ∠CFE (right angle is 90°)

2. obtuse angle = ∠BFE (obtuse angle is higher than 90°)

3. straight angle = ∠AFE (stright angle is 180°)

4. acute angle = ∠AFB (acute angle is less than 90°)