A quadrilateral has two angles that measure 295° and 35°. The other two angles are in a ratio of 7:8. What are the measures of those two angles?

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1 answer

To find the measures of the remaining angles in the quadrilateral, we first need to know the sum of all angles in a quadrilateral. The sum of the angles in any quadrilateral is 360°.

We know two angles:

  • Angle 1: 295°
  • Angle 2: 35°

Let's add these two angles together: \[ 295° + 35° = 330° \]

Next, we can find the sum of the remaining two angles by subtracting their sum from 360°: \[ 360° - 330° = 30° \]

So, the sum of the two remaining angles, which we'll call \(x\) and \(y\), is: \[ x + y = 30° \]

We also know that the two angles are in a ratio of 7:8. This means we can express them as: \[ x = 7k \quad \text{and} \quad y = 8k \] for some value \(k\).

Now we can substitute \(x\) and \(y\) into the equation: \[ 7k + 8k = 30° \] \[ 15k = 30° \]

Now, solve for \(k\): \[ k = \frac{30°}{15} = 2° \]

Now we can find the measures of the angles \(x\) and \(y\): \[ x = 7k = 7 \cdot 2° = 14° \] \[ y = 8k = 8 \cdot 2° = 16° \]

Thus, the measures of the two angles are: \[ x = 14° \quad \text{and} \quad y = 16° \]

To summarize: The measures of the other two angles are 14° and 16°.