Triangle Quiz

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• 67
• 65
• 54

Use the picture to answer the question.

• 76
• 28
• 152
• 56

What is the value of x?

• 20
• 60
• 15
• 40

In Δ ABC and Δ DEF, AB = DF and ∠ A = ∠ D . The two triangles will be congruent by S.A.S axiom if

• (a) BC = EF

• (b) AC = DE

• (c) BC = DE

• (d) AC = EF.

If Δ ABC is congruent to Δ DEF and if AB = 3 = DE and BC = EF = 4 , then necessary condition is

• (a) ∠ A = ∠ D

• (b) ∠ B = ∠E

• ( c) ∠ C = ∠ F

• (d) CA = FD

The shortest distance between two sides of a triangle is called the:

• a) Altitude

• b) Median

• c) Perpendicular bisector

• d) None of the above

When finding the length of a side in a right triangle, which trigonometric ratio should be used?

• a) Sine

• b) Cosine

• c) Tangent

• d) None of the above

If the sum of the lengths of two sides of a triangle is less than the length of the third side, the triangle is:

• a) Acute-angled

• b) Obtuse-angled

• c) Right-angled

• d) Not possible

The area of a triangle can be calculated using the formula:

• a) (1/2) base height

• b) (1/2) sum of the three sides

• c) (1/2) product of the three sides

• d) None of the above

An angle of 90 degrees in a triangle is called:

• a) Acute angle

• b) Obtuse angle

• c) Right angle

• d) None of the above