Question

State whether the angle appears to be acute, right, obtuse, or straight. Then estimate its measure.

• $\angle CDB$
  

Short answer

The angle $\angle CDB$appears to be acute angle and it’s estimated measure is $\mathit{m}\mathbf{\angle }\mathbf{6}$.

Step-by-step solution

Step 1. Apply the definition of acute angle.

Acute angle is an angle which measures between $0°$to $90°$.

Step 2. Description of step

From the given figure, it can be observed that the $\angle CDB$measures between $0°$ to $90°$therefore, $\angle CDB$ appears to be acute angle.

Step 3. Estimate the measure of ∠CDB

$\angle CDB=m\angle 6$