Maths-

General

Easy

Question

# In the kite shown, what additional information is required to

prove that △ CAB ≅△ CAD ?

Hint:

### Use the appropriate congruence rule.

## The correct answer is: Then, △CAB⩭△CAD by SAS congruence rule.

### SAS postulate: If 2 sides and the included angle of one triangle are equal to 2 sides

and the included angle of another triangle, then the triangles are congruent by SAS

congruence criterion.

Consider 2 triangles, and

From the figure, we have

AB = AD (given)

Also, AC = AC (common side)

According to SAS congruence rule, we must have

( the included angle) to satisfy the postulate

Then, by SAS congruence rule.

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