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Write the name or statement of the definition, postulate, or theorem that justifies the statement about the diagram.

If CDAB, then mCDB=90.

Short Answer

Expert verified

The statement of the definition which justifies the statement about the given diagram is the definition of the perpendicular lines which states that the perpendicular lines are the lines which intersects at right angles that is the angles having measure 90°.

Step by step solution

01

Step 1. Observe the given diagram.

The given diagram is:

02

Step 2. Definition of perpendicular lines.

The perpendicular lines are the lines which intersect at right angles that is the angles having measure90°.

03

Step 3. Write the statement of the definition that justifies the statement about the given diagram.

The statement of the definition that justifies the statement about the given diagram is the definition of the perpendicular lines which states that the perpendicular lines are the lines which intersects at right angles that is the angles having measure 90°.

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