Q1. What is the third angle for the triangle where angle1 = 45° and angle2 = 45°?

45° 90° 60°

Q2. What is the third angle for the triangle where angle1 = 45° and angle2 = 45°?

obtuse acute right angled

Q3. A triangle can have

one right angle two right angles

Q4. Which of the following can form a right angled triangle?

14, 15, 26 12, 16, 20

Q5. Which of the following triangles are always similar?

Equilateral triangle Isosceles triangle

Q6. If one angle of a triangle is obtuse, then which one of the following is the possible measure of remaining angles?

100° 85°

Q7. If the largest angle in a triangle is 70°, what is the least possible value of the smallest angle of the triangle?

30° 10°

Q8. The perimeter of scalene triangle with sides a, b, c is

a + b + c 2a None of these

Q9. A scalene triangle has ___ lines of symmetry

two no 15

Q10. There is a right triangle PQR where: angle Q = 90°; angle P = angle R. What is the measure of angles P and R?

85° 65° 45°