ANGLES AND GEOMETRY PROBLEM PART 1
Find a, b and c from the following figure below
- Since CD is a straight line, therefore the sum of angles 4x, 3x and 5x must be 180°
Hence,
4x + 3x + 5x = 180
→ 12x = 180
→ x = 15 °
- Now, we see that following are the equal angles because they are vertically opposite, hence
a = 5x
b = 3x
c = 4x
Therefore,
a = 5x
= 5*15 = 75°
b = 3x
= 3*15 = 45 °
c = 4x = 4*15 = 60°
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