gcse ocr maths

Question 1

What is the formula for the area of a triangle?

Answer 1

Area = 1/2 × base × height

Question 2

True or False: The sum of angles in a triangle is 180 degrees.

Answer 2

True

Question 3

What is the quadratic formula?

Answer 3

x = (-b ± √(b² - 4ac)) / (2a)

Question 4

Fill in the blank: The median is the _____ value in a data set when arranged in order.

Answer 4

middle

Question 5

What does the acronym BIDMAS stand for?

Answer 5

Brackets, Indices, Division and Multiplication, Addition and Subtraction

Question 6

What is the probability of flipping a fair coin and getting heads?

Answer 6

1/2 or 50%

Question 7

True or False: A circle has a constant curvature.

Answer 7

True

Question 8

What is the formula for the circumference of a circle?

Answer 8

Circumference = 2πr, where r is the radius.

Question 9

What is the Pythagorean theorem?

Answer 9

In a right triangle, a² + b² = c², where c is the hypotenuse.

Question 10

What is the mode of the following set of numbers: 1, 2, 2, 3, 4?

Answer 10

2

Question 11

Fill in the blank: A line that intersects a circle at exactly one point is called a _____ line.

Answer 11

tangent

Question 12

What is the value of π (pi) to two decimal places?

Answer 12

3.14

Question 13

What is the slope of a line represented by the equation y = 3x + 2?

Answer 13

3

Question 14

How do you convert a fraction to a decimal?

Answer 14

Divide the numerator by the denominator.

Question 15

True or False: The product of two negative numbers is positive.

Answer 15

True

Question 16

What is the formula for the volume of a cylinder?

Answer 16

Volume = πr²h, where r is the radius and h is the height.

Question 17

What is the difference between mean and median?

Answer 17

Mean is the average; median is the middle value.

Question 18

Fill in the blank: The x-intercept of a graph is where the line crosses the _____ axis.

Answer 18

x

Question 19

What is the value of 7! (7 factorial)?

Answer 19

5040

Question 20

What is the distance formula in a coordinate plane?

Answer 20

Distance = √((x2 - x1)² + (y2 - y1)²)

Question 21

True or False: An obtuse angle measures more than 90 degrees.

Answer 21

True

Question 22

What is the sum of the interior angles of a hexagon?

Answer 22

720 degrees

Question 23

What is the greatest common divisor (GCD) of 12 and 16?

Answer 23

4

Question 24

Fill in the blank: A polygon with four sides is called a _____.

Answer 24

quadrilateral

Question 25

What is the formula for converting Celsius to Fahrenheit?

Answer 25

F = (C × 9/5) + 32

Question 26

What is the standard form of a linear equation?

Answer 26

Ax + By = C