Question

In a triangle abc angle a+ angle b = angle c and angle a-angle b = 30 degree

Answer 1

Answer:

Step-by-step explanation:

Let angle a= A°, angle b=B°, and angle c=C°

Now, we know A°+B°=C°

Also, A°+B°=180°-C°

Thus, we get 180=2C°

⇒C°=90°

Now, A°+B°=90°

And, A°-B°=30°

Adding the two equations, we get

2A°=120° ⇒A°=60°

Putting the value of A° in first equation,

we get 60°+B°=90°⇒B°=30°