Angle Ratios
- Author:
- kjhunjhnuwala
- Topic:
- Ratios
Change the a, b, c ratios to see how the angles change
Angle relationship given the ratios among the angle a,b,c on a straight line.
Suppose the ratio a:b:c = 6:1:2 and a + b + c = 180°.
What is the value of c? ( Hint: 6b + b + 2b = 180°)
Answer:
Use the ratio in terms of b.
Since a:b:c = 6:1:2, in terms of b means that
6b + b + 2b = 180°
9b = 180°
b = 20°
But c = 2b
c = 2 * 20°
c = 40°