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

16230 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve the simultaneous equations: 3x + 2y =4 4x + 5y =17


What is the value of x if 2X+1: 3 = 5: 9?


Rationalise the Denominator: 5+√2/(√3)


Benjamin has a 0.7 chance of passing his driving test the first time and a 0.85 chance of passing the second time. What is the probability of his passing on either the first or second try?


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