Question

Find the value of x of triangle ​

Answer 1

Answer:

Given

=>An exterior Angle = 4x and 2 interior Angles (x-15° & 2x-25) opposite to the exterior Angle

To Find

=> The value of X and each angle

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=>Applying The theorem of Exterior Angle Which states that The measure of an exterior Angle = Sum of two OPPOSITE interior angles

=> x-15°+ 2x+25° = 4x

=> 3x+10° = 4x

=> 3x-4x = -10

=> X= 10°

=> x-15° = 10-15 => -5°

=>2x+25 = 20+25 = 45°

Also ,

45°-5° = 10 × 4

40° = 40°

Hence , Verified ✓

Answer 2

Answer:

By the math, x = 10°

Here's my issue though, the top angle is x - 15°. That would be an angle of -5° which is impossible.

Step-by-step explanation:

x - 15 + 2x + 25 + 180 - 4x = 180°

combine like terms:

3x - 4x + 190 = 180°

-x = -10°

x = 10°