Question

In triangle ABC, Angle A =x° , Angle B =x-40° and Angle C =x+10°. Find Angle C. *
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Answer 1

Answer:

triangle A +B+C = 180° (triangle sum property)

x + x-40 + x+10 =180°

x+x+x -40+10 =180°

3x -30 =180°

3x = 180°+30° (30° sign will change here)

3x= 210°

x= 210/3

x=70°

A=70°

B= X-40° (70-40)

= 30°

C= X+10° (70+80)

=90°

Step-by-step explanation:

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