Question

Two angles of a triangle are in the ratio 4:5. If the sum of these angles is equal to the third angle find the angles of the triangle.
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Answer 1

Solution :

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According to given question,

A+B+C=180degree

A=4x ,B=5x ,c=x to find

$4x + 5x = 180$

$9x = 180$

$x = 20 \: degree$

A=4x=4(20)=80degree

B=5x=5(20)=100degree

C=20 degree