**How To Find The Value Of X In Angles Of A Triangle Ideas**. We found the value of x but it does not mean we are done. (13x + 35)° = 30° + (12x + 13)° apply the exterior angle theorem.

X + 5 y + 3 y = 180 ∘. M∠1 + 30° + 109° = 180° apply the triangle sum theorem. What is the value of x?

### Find The Measures Of The Interior Angles.

6.find the value of x. Substitute 8 for x in (12x + 13)° to fi nd the obtuse angle measure, 109°. If only 2 sides and an internal angle is given then the remaining sides and angles can be calculated.

### Learn How To Find The Value Of The Unknown Angle In A Triangle.

Find the values of x and y in the following triangle. Show all work find the value of x in each triangle. X°, (x + 20) ° and (2x + 40) °.

### (13X + 35)° = 30° + (12X + 13)° Apply The Exterior Angle Theorem.

So c = 180° − 76° − 34° = 70° What is the value of x? Vertical and adjacent angles 1.

### Identify The Measures Of The Two Interior Angles Opposite The Exterior.

First, calculate the length of all the sides. X + x + 2x + 20° + 40° = 180° 4x + 60° = 180° subtract 60 from both sides. X = 180 ∘ − 8 ( 15 ∘) x = 180 ∘ − 120 ∘.

### How To Find The Value Of X In Angles Of A Triangle.

X° = ½(152 + 60) = ½(212) = 106° question 31. Subtract the two known angles from 180 °. The answer is 40 degrees.