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Phantasy [73]
3 years ago
6

The second angle of a triangle is double the first angle. The third angle is 40 less than the first angle. Find the three angles

.
Mathematics
1 answer:
ArbitrLikvidat [17]3 years ago
6 0

Answer:

Angle 1: 55

Angle 2: 110

Angle 3: 15

Step-by-step explanation:

Angle 1: x

Angle 2: 2x

Angle 3: x-40

The total degrees for all the angles in a triangle add up to 180, so we now have the equation x+2x+x-40=180. From here we solve to get 55 degrees for x, so angle 1 is 40 degrees, angle 2 is 110 (2 times 40) and the third angle is 15 (55-40).  

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