Math Quiz

What is the discriminant of the quadratic equation 2x²-4x+3=0?

• 4

• -8

• 8

• -4

State Thales theorem.

• The sum of the angles in a triangle is 180 degrees.

• The opposite angles of a cyclic quadrilateral add up to 180 degrees.

• The ratio of the sides of similar triangles is equal to the ratio of their corresponding angles.

• The ratio of the areas of two similar triangles is equal to the square of the ratio of their corresponding sides.

Calculate the length of tangent from a point 15 cm away from the centre of a circle of radius 9 cm.

• 9 cm

• 6 cm

• 12 cm

• 3 cm

A cone and a cylinder have equal base radii. If the height of the cone is half the height of the cylinder. What is the ratio of their volumes?

• 1:4

• 1:1

• 1:3

• 1:2

Match the following trigonometric functions with their values: Sin 30⁰, Tan 45°, Sec 60⁰

• Sin 30⁰ - 2, Tan 45° - 1, Sec 60⁰ - 1

• Sin 30⁰ - 1, Tan 45° - 2, Sec 60⁰ - 1

• Sin 30⁰ - 2, Tan 45° - 1, Sec 60⁰ - 3

• Sin 30⁰ - 3, Tan 45° - 2, Sec 60⁰ - 1

Draw a rough diagram for the situation: 'A tower stands vertically on the ground. From a point which is 15 meters away from the foot of the tower, the angle of elevation of the top of the tower is 45°.'

• Option A

• Option C

• Option B

• Option D

If P(E)=0.02, then what is the probability of 'p(not E)'?

• 0.50

• 0.02

• 0.98

• 1.00

Find the mode of the data: 3, 2, 4, 3, 2, 4, 3, 2, 4, 2.

• 3

• 4

• 2

• 1