Calculate the area of a circle of diameter 8cm

Solution: 

We can first write down the formula for the area of a circle which is pi*(radius)^2.

The radius of the circle is half the diameter, so radius= 1/2(8)=4cm.

Therefore the area of the circle is: pi* (4^2)= 50.27cm(2.d.p) Ans

Answered by Headon H. Maths tutor

16242 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve 5x - 2= 3x + 7


Convert 0.22222222... (recurring) into a fraction


Solve the simultaneous equations, 2x-3y=14 and 3x+4y=4


Solve 2x + 7 = 13


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences