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Sticky Note
Three angles of a triangle are in the ratio 1:1:2, the angles will be _____?
  1. 45°, 45°, 90°
  2. 30°, 30°, 120°
  3. 50°, 50°, 80°
  4. None of these
Explanation

Let's denote the three angles as x, x, and 2x, since they are in the ratio 1:1:2.

The sum of the angles in a triangle is always 180°:

x + x + 2x = 180°

Combine like terms:

4x = 180°

Divide by 4:

x = 45°

Now that we know x, we can find the other angles:

x = 45°

x = 45°

2x = 90°

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