Question

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

If$\angle \mathbf{2}$is a${\mathbf{90}}^{\circ }$, then $\overleftrightarrow{\mathit{\text{KJ}}}\mathit{\perp }\overleftrightarrow{\mathit{\text{GH}}}$.

Short answer

The statement regarding the diagram can justified by the Property of perpendicular line.

Step-by-step solution

Step 1. Observe the diagram.

Here, $\angle 2={90}^{\circ }$.

Step 2. State the property of perpendicular line.

When two sides make a right angle $\left({90}^{\circ }\right)$with each other then, both lines are perpendicular to each other.

Step 3. State the conclusion.

Here, $\angle 2={90}^{\circ }$.

Then,$\overleftrightarrow{KJ}\perp \overleftrightarrow{GH}$.

Therefore, the statement is justified by the Property of perpendicular line.