Question

The angles of a triangle are in the ratio 1:1:2 . What is the largest angle ?

Answer 1

Step-by-step explanation:

angles x,x,2x

sum=180

x+x+2x=180

4x=180

x=45

largest angle=2x=2×45=90

Answer 2

Answer:

90°

Step-by-step explanation:

Let the angles be 1x, 1x and 2x.

Angle Sum Property of ∆ = 180°

=> angle 1 + angle 2 + angle 3 = 180°

=> x + x + 2x = 180

=> 4x = 180

=> x = 180 ÷ 4

=> x = 45°

Largest angle = 2x = 2 × 45 = 90°