Question

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

Answer 1

Answer:

<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

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

A=9

X=90

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