In a triangle the first angle is 10 degrees more than the second angle. the third angle is equal to the sum of first 2 angles . find the value of all three angles

2÷6+1/2 to the second power plus one

Can you me find the missing length. i attached an image.

]supplementary angles are two angles that add up to . • complementary angles are two angles that add up to degrees. • adjacent angles share a and a • congruent angles have the measure. • an triangle has one angle that is greater than 90 degrees. • a triangle with angles 45°, 45°, and 90° would be a triangle