One angle in a triangle is 10 degrees more than the smallest angle in the triangle, whereas the other angle is 20 degrees more t
han the smallest angle. Find the measure of the three angles.
1 answer:
In a triangle, the three interior angles always add to 180°
<span>Three angles of a triangle are x, (x+10) and (x+20)
</span>
x + x+10 + x+20 = 180
3x + 30 = 180
3x = 180 - 30
3x = 150
x = 150/3
x = 50° ← smallest angle
second angle = x + 10 = 50 + 10 = 60°
third angle = x + 20 = 50 + 20 = 70°
Answer:
50°, 60° and 70°
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