Question

in figure 3.8 angle ACD is an exterior angle of triangle ABC. angle B = 40 , angle A = 70. find the measure of angle ACD

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Answer 1

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Answer 2

Answer:

110

The sum of two angle of a triangle =The exterior angle of the triangle.

ABC is a triangle.

in which angle A is -70° and angle B is-40°.

40+70=exterior angle

110 = exterior angle...

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