Question

the three angles of triangle are in the ration 1:2:1 .find all the angles of the triangle​

Answer 1

Let ABC be the D

Let ∠A=x

∠B=2x

∠C=x

∠A+∠B+∠C=180

4x=180

x=45

∠A=45

∠B=90

∠C=45

Since ∠A=∠C

ABC is isosceles D4.

Since ∠B=90

ABC is Right angled at B.