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Chapter 5: Q. 20 (page 201)

Given:ABCDis a parallelogram;AD¯≅AC¯;AE¯≅EC¯;∠ADF≅∠CDF;m∠DAC=36.

Complete each statement about the diagram.

20.△ADCis a(n)?_ triangle.

Short Answer

Expert verified

△ADCis an isosceles triangle.

Step by step solution

01

- Observe the given diagram.

The given diagram is:

02

- Write the definition of isosceles triangle.

The isosceles triangle is a triangle in which the two of the sides are equal.

03

- Write the complete statement.

It is being given thatAD¯≅AC¯.

Therefore, in the triangle△ADC, it can be noticed thatAD¯≅AC¯.

Therefore, in the triangle△ADC, two of the sides are equal. Therefore,△ADC is an isosceles triangle.

△ADCis an isosceles triangle.

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