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Chapter 2: Q15. (page 68)

Name the definition or state the theorem that justifies the statement about the diagram.

If KJ↔⊥GH↔, then ∠1is a right angle.

Short Answer

Expert verified

∴∠1is the right angle ifKJ↔⊥GH↔ .

Step by step solution

01

Step 1. Observe the diagram.

Here, KJ↔⊥GH↔.

02

Step 2. Show the proof.

The expression KJ↔⊥GH↔shows that the KJ↔is vertically straight on the line GH↔that is horizontal and the angle that it makes is of 90∘that is called the right angle. Consider∠1is the angle made between the two lines so,∠1=90∘.

03

Step 3. State the conclusion.

Therefore, ∠1 is the right angle if KJ↔⊥GH↔ .

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