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The measure of the angles of a triangle are in the ratio 2 : 7 : 11. Measures of angles are
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- 16°, 56°, 88°
- 18°, 63°, 99°
- 20°, 70°, 90°
- 25°, 175°, 105°
Correct Option: B
Let the measure of three angles of triangle are 2x, 7x and 11x respectively.
∴ 2x + 7x + 11x = 180º
⇒ 20x = 180
| ⇒ x = | 20 |
∴ First angle = 2x = 2 × 9 = 18°
Second angle = 7x = 7 × 9 = 63°
Third angle = 11x =11 × 9 = 99°
