14. The angles of a triangle are x, x + 15" and 2x – 15°. Find the smallest angle of
triangle
(Hint: Since, the sum of three angles of a triangle is always 180",
x + (x + 16) + (2x 15%) = 180°
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Answer:
The three angles of the triangle are 45°, 60° and 75°
Step-by-step explanation:
sum of all angles of a triangle is 180°
so x + (x + 15) + (2x -15) = 180°
Solve the equation
=> x + x+ 2x + 15 - 15 = 180°
=> 4x + [15-15] = 180°
=> 4x + 0 + 180°
=> 4x = 180
=> Transposing 4 to RHS
=> x =
=> x = 37.5
=> x = 45
As the angles are x, x + 15 and 2x – 15°, the measures are-
x° = 45°
x + 15° = 60°
2x – 15° = 75°
Answer- The three angles of the triangle are 45°, 60° and 75°
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