Question

In the adjoining figure, some measurements are given.
Name the two triangles that are congruent. Give reasons.
I) Can u determine the measure of angle ADC?
ii) Is triangle ADC congruent to triangle ABC?
II) Is angle ADC = angle ABC? ​

Answer 1

Answer:

1.ADC ang is

72 deg ...v .o.a.

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2.yes.....it can be proved through a theorem..

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3.yes...as they are vertically opposite angle