How do you calculate the sum of all internal angles of a regular polygon?

Use the formula (n-2)*180 where n is the number of sides on the polygon.

BC
Answered by Ben C. Maths tutor

3135 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

A rectangle has an area of 20 cm^2.  Its length and width are enlarged by scale factor 3.  Find the area of the enlarged rectangle.


Given that your grade for your computing is based on 5 coursework that weigh differently, and you know the results of 4: 80, 75, 50 and 90 which weighs 10%, 20%, 45% and 5%. What grade do you need in your last coursework to achieve at least a B (70%)?


Solve 5x^2 = 10x + 4 , to 2 decimal places.


2x + 7y = 14 and x + y = 2. Find the value of x and y which satisfy both equations.


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning