Grade 8 Mathematics Quiz

Applying the Pythagorean theorem: What is the length of the hypotenuse in a right-angled triangle with sides of length 3 and 4?

• 6

• 8

• 7

• 5

Applying the Pythagorean theorem: In a right-angled triangle, if the length of the hypotenuse is 10 and one side is 6, what is the length of the other side?

• 5

• 8

• 12

• 4

Applying the Pythagorean theorem: A ladder is leaning against a wall. If the ladder is 25 feet long and the base of the ladder is 7 feet away from the wall, how high up the wall does the ladder reach?

• 10 feet

• 24 feet

• 15 feet

• 30 feet

Area: What is the area of a rectangle with length 8 and width 5?

• 13

• 30

• 40

• 56

Area: Find the area of a circle with a radius of 6 units (use π = 3.14).

• 45.36 square units

• 18.84 square units

• 113.04 square units

• 36 square units

Area: A triangle has a base of 10 units and a height of 8 units. What is the area of the triangle?

• 25 square units

• 12 square units

• 40 square units

• 18 square units

Addition: What is the sum of 345 and 567?

• 723

• 879

• 811

• 912

Addition: If a student scored 85 in one test and 92 in another, what is the total score?

• 179

• 167

• 177

• 177

Addition: A store sold 124 books in the morning and 189 books in the afternoon. How many books were sold in total?

• 213

• 427

• 256

• 313

Integration: Find the integral of 3x^2 + 2x + 5 with respect to x.

• 3x^2 + 2x^2 + 5x + C

• 3x^2 + 2x + 5x + C

• 3x^3 + 2x^2 + 5x + C

• x^3 + x^2 + 5x + C