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Chapter 1: Q9 (page 20)

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

  • ∠EDB

Short Answer

Expert verified

The angle ∠EDBappears to be obtuse angle and it’s estimated measure is (m∠7+m∠6).

Step by step solution

01

Step 1. Apply the definition of obtuse angle

Obtuse angle is an angle which measures between 90°to 180°.

02

Step 2. Description of step

From the given figure, it can be observed that the ∠EDBmeasure between90° and 180°therefore, ∠EDBappears to be obtuse angle.

03

Step 3. Estimate the measure of ∠EDB

Clearly,∠EDB=∠EDC+∠CDB wherein∠EDC=m∠7 and ∠CDB=m∠6.

Therefore, ∠EDB=m∠7+m∠6.

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