One angle of a triangle is 2 / 3 of a right angle. the greater of the other to exceed the lesser by 20 degree. Find the angles of the triangle in grades.

Question

Mathematics

Lilianna Leach

24 February, 04:38

One angle of a triangle is 2 / 3 of a right angle. the greater of the other to exceed the lesser by 20 degree. Find the angles of the triangle in grades.

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Kamari Duncan · Answer 1

2/3 of a right triangle is 60 degrees. Then x + (x+20) + 60 = 180 total.

2x + 80 = 180, so 2x = 100 and x = 50. The angles are 50, 70 and 60 (degrees)

What do you mean by "grades?"