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Class 7    Math    Example [M-7.49]
Q1. An exterior angle of a triangle is 70o and one of its interior opposite angles is 25o. Find the measure of the other interior opposite angle.

• 135o
• 45o
• 85o
• 20o

Q2. State True or False: "Two obtuse angles cannot be adjacent".

• Blank
• TRUE
• FALSE
• Blank

Q3. The lengths of two sides of a triangle are 12 cm and 4 cm. Between which two numbers, the third side of the triangle will fall ?

• 8 cm and 10 cm
• 8 cm and 16 cm
• 2 cm and 10 cm
• 4 cm and 16 cm

Q4. If two altitudes of a triangle are two of its sides, then the triangle must be a --------------- triangle.

• equilateral
• acute angle
• obtuse angle
• right angle

Q5. Identify value of angles x, y and z in the below diagram ?

• X = 45o, Y = 135o, Z = 45o
• X = 35o, Y = 135o, Z = 55o
• X = 45o, Y = 135o, Z = 40o
• X = 45o, Y = 125o, Z = 45o
Q6. Refer the following diagram. Select correct congruent triangles from the below options ?

• ∆XZW ≅ ∆XYZ
• ∆XWZ ≅ ∆ZYX
• ∆WZX ≅ ∆ZYX
• ∆ZXW ≅ ∆ZXY

Q7. Which of the following pair of angles are supplement to each other ?

• A and B
• B and C
• A and D
• B and D

Q8. When two angles are congruent, their measures are ---------------.

• 90o
• 180o
• 45o
• same

Q9. 26o angle is the complement of the which of the below angles ?

• 64o
• 54o
• 154o
• 26o

Q10. Largest angle of a triangle is 20 degrees more than twice of the smallest angle. Find all the three angles of the triangle when the third angle is 20 degrees more than the smallest angle ?

• smallest angle = 45o, largest angle = 90o, third angle 55o
• smallest angle = 35o, largest angle = 100o, third angle 45o
• smallest angle = 35o, largest angle = 90o, third angle 55o
• smallest angle = 35o, largest angle = 90o, third angle 45o

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