Sectors of circles (AQA GCSE Maths): Quizzes

📚Quizzes
Sectors of circles
Sign up to keep practising.Create a free account to play more quizzes and track your progress.

Practise the questions

10 questions from this quiz

Show

What is a sector of a circle?

A portion like a slice of pie

What two components form a sector of a circle?

Two radii extending from the centre

What is the larger portion of a circle called when divided by two radii?

Major sector

What determines the fraction of the whole circle that a sector represents?

The angle at the centre

What is the formula for the area of a sector with angle x° and radius rr?

x360°×πr2\frac{x}{360°} \times \pi r^2

What is the formula for arc length of a sector with angle x° and radius rr?

x360°×2πr\frac{x}{360°} \times 2\pi r

What is the perimeter of a sector equal to?

Arc length +2r+ 2r

Why do both sector formulas start with x360°\frac{x}{360°}?

It's the fraction of the whole circle

What is the rearranged formula to find angle xx from area and radius rr?

x=Area×360°πr2x = \frac{\text{Area} \times 360°}{\pi r^2}

When should you round your answer in sector calculations?

Only at the final answer

Join 100,000+ GCSE students studying Quizzes with us.

Select your subjects, and get access to A+ resources today.