Question

please send me pic yrr and no mistake please guyss​

Answer 1

Answer:

Angle ACD is 50°.

Step-by-step explanation:

See, as both triangles are congruent, so angle ACB = angle ACD. Now find angle ACB from triangle ABC by using the formula, Sum of all sides of a triangle = 180°.

Remember you have two angles(30°,100°) of a triangle.

Now simply compare the consequent angles in the lower triangle!!

Answer 2

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In the Adjoining figure, Triangle ABC is congruent to Triangle ADC. If Angle BAC = 30° and Angle ABC = 100° then Angle ACD = ?

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Using Angle Sum property of triangle:

BAC+ABC+ACD = 180°

= 30+100+ACD = 180°

= 130+ACD = 180°

Angle ACD = 180-130

= 50°✓