Two supplementary angles measure (3x + 5) and (9x - 5), the value of x is _____?
- 45°
- 15°
- 90°
- None of these
Explanation
Supplementary angles add up to 180°, so set up an equation:
(3x + 5) + (9x - 5) = 180°
Combine like terms:
12x = 180°
Divide both sides by 12:
x = 15°
Related MCQs
- 325°
- 90°
- 145°
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 33 cm
- 50 cm
- 66 cm
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 40
- 45
- 50
- 55
اس سوال کو وضاحت کے ساتھ پڑھیں
- 50 cm
- 40 cm
- 30 cm
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- Right angle
- Reflex angle
- Complementary angle
- Supplementary angle