one of the angles of a triangle is two thirds of the sum of the adjacent angles of parallelogram. Remaining angles of the triangle are in the ratio 5:7 .what is value of the second largest angle of the triangle
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Answer:
35°
Step-by-step explanation:
Sum of adjacent angles of a parallelogram = 180∘
Therefore, One of the angles of triangle
= 23×180∘=120∘
Sum of three angles of a triangle = 180∘
Therefore, 5x + 7x = 180 - 120
=> 12x = 60 => x = 5
Second angle of triangle = 5×5=25°
Third angle of triangle = 7×5=35∘
The second largest angle of triangle = 35∘
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