Question : Two angles of a triangle are equal and the third angle measures 78°. What is the measure of each of the unknown angles?

Option 1: 50°

Option 2: 51°

Option 3: 49°

Option 4: 52°

Question : If the sum and difference of two angles are 135° and $\frac{\pi}{12}$, respectively, then the value of the angles in degree measure is:

Option 1: 70° and 65°

Option 2: 75° and 60°

Option 3: 45° and 90°

Option 4: 80° and 55°

Question : The difference between the largest and the smallest angles of a triangle whose angles are in the ratio of 5 : 3 : 10 is:

Option 1: 20°

Option 2: 30°

Option 3: 50°

Option 4: 70°

Question : The angles of a triangle are in the ratio 2 : 3 : 7. What is the measure of the largest angle of the triangle?

Option 1: 100°

Option 2: 45°

Option 3: 90°

Option 4: 105°

Question : An exterior angle of a triangle is 115° and one of the interior opposite angles is 45°. The other two angles are:

Option 1: 65° and 70°

Option 2: 60° and 75°

Option 3: 45° and 90°

Option 4: 50° and 85°