Search our library of Maths GCSE questions

Top answers

Maths

GCSE

A square, with sides of length x cm, is inside a circle. Each vertex of the square is on the circumference of the circle. The area of the circle is 49 cm^2. Work out the value of x. Give your answer correct to 3 significant figures.

The question tells us that the area of the circle is 49cm², therefore we are able to form the equation πr²=49 (where r = radius of the circle). We can now work out the radius of the ...

Answered by Sian J. • Maths tutor

23535 Views

Which of these shapes has the most sides? Hexagon, Octagon, Rhombus, Trapezium

Hexagon = 6 sides,Octagon = 8 sides,Rhombus = 4 sides,Trapezium = 4 sides. Therefore, the octagon has the most sides.

Answered by Ioan Iulian V. • Maths tutor

26615 Views

Expand the expression (3x+2)(3-2x)

9x - 6x²+ 6 - 4x-6x²+ 5x + 6

Answered by Angus H. • Maths tutor

3877 Views

1/4+0.5

1/4+2/4=3/4

Answered by Max L. • Maths tutor

5858 Views

Never in a GCSE syllabus, but still a question I had as a student and one I hear today- something, I feel, is worth going over (Similar in a sense to proving that completing the square works). We use the ...

Answered by Sam C. • Maths tutor

3399 Views