Question

In triangle ABC, the measure of angle A is equal to the sum of the measures of B and C. Alsothe ratio of measures of B and C is 4:5. Then find the measures of angles of the triangle

Answer 1

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Answer 2

<A=<B+<C
<A=5x+4x
<A=9x
by angle sum property of triangle
<A+<C+<b=180
9x +5x+4x=180
18x=180
x=10
b=5x =50
c=4x=40
a =9x=90