MYTUTOR SUBJECT ANSWERS

127 views

How do I find the area of a circle C with diameter 14cm?

The formula for the area of a circle is π r2. To use this formula we first need to find r, the radius of the circle. The radius is the distance from the centre of the circle to the edge, and is equal to half of the diameter. The radius of this circle is half of 14, or 14/2 = 7. Now we can use the formula for area.  π x 7= π x 49 = 153.938..... or 159.3 to 1 decimal place. It is important not to forget units with your final answer if they are given in the question, so the area of our circle C = 159.3 cm2.

Tamsyn H. GCSE Maths tutor, 11 Plus Maths tutor, 13 Plus  Maths tutor

3 months ago

Answered by Tamsyn, a 13 Plus Maths tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

116 SUBJECT SPECIALISTS

£22 /hr

Rhys W.

Degree: Leadership (TeachFirst) (Masters) - University College London University

Subjects offered: Maths, Physics+ 1 more

Maths
Physics
Geography

“About Me: I am a currently studying for a Masters in Educational Leadership at UCL. I have azest for everything geographical - even if people can't decide what geography really is! This passion for my subject has led me to a place on...”

MyTutor guarantee

£18 /hr

Wesley M.

Degree: Mathematics (Masters) - Bristol University

Subjects offered: Maths, Physics+ 1 more

Maths
Physics
Chemistry

“I am a current Mathematics student at The University of Bristol. Maths can be a love-hate sort of subject for many people, but with my absolute love and enthusiasm for both maths itself and the idea of inspiring others, I hope to be a...”

£18 /hr

Laura C.

Degree: Chemistry (Masters) - Durham University

Subjects offered: Maths, Science+ 3 more

Maths
Science
Chemistry
Biology
-Personal Statements-

“Hello, I'm Laura. I know how hard GCSEs and A Levels are and the stress they can cause. I also know how beneficial having a friendly undestanding person to help can be. For me, that was my sister. For you, I hope that can be me.  I'm...”

About the author

£18 /hr

Tamsyn H.

Degree: Mathematics (Bachelors) - Cardiff University

Subjects offered: Maths

Maths

“Top tutor from the renowned Russell university group, ready to help you improve your grades.”

MyTutor guarantee

You may also like...

Other 13 Plus Maths questions

How do I work out the area of different shapes?

Solve the following simultaneous equation: 3x+2y=20 and x+4y=20

What is the median, upper quartile and lower quatile. How do we find them?

Find the next three terms of the sequence 17, 14.5, 12, 9.5

View 13 Plus Maths tutors

Cookies:

We use cookies to improve our service. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok