The angle of a triangle are in AP smallest angle is 40° find remaining angle
Arithmetic Expression
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Answered by
3
Step-by-step explanation:
let the angles be a, a+d and a+2d
given a = 40°
sum of angles of a ∆ is 180°
=> a+a+d+a+2d = 180
=> 3a + 3d = 180
=> 3(a+d) = 180
=> a + d = 180/3
=> a + d = 60°
=> 40 + d = 60°
=> d = 60 - 40
=> d = 20°
therefore angles are
=> 40° , 40°+20°, 40° + 2×20°
=> 40°, 60° and 80°
Answered by
2
Answer:
hi mate
Step-by-step explanation:
the answer is 40°,60°,and80°
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