Question

In a triangle ABC, if angle A=
= angle B + angle C, then prove
that triangle ABC is a
right triangle​

Answer 1

☺️☺️Hello Mate,☺️☺️

Here is your answer:

*In triangle ABC,

Let angle A be x

and angle B + C =A (given)

Angle Sum of a triangle is 180°

A +B+C=180°

B+C=180°-A

It is given that B+C=A

Therefore we can write B+C as A

which means,

A=180°-A

A+A =180°

2A=180°

A=180÷2=90°

ANGLE A =90°

HENCE PROVED

I HOPE THAT IT HELPED YOU

Answer 2

Step-by-step explanation:

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