If side A is 3m and side B is 4m, what would be the length of the remaining side C?

If side A is 3m and side B is 4m, what would be the length of the remaining side C?
A = 3m ; B = 4m ; C =?Use Pythagoras Theorem to give the equation: A2 + B2 = C2 Rearrange:(A2 + B2)1/2 = C
Because I do not have a square root command on this window I have used the 1/2 as seen above, it mathematically correct but may not be the way your normal see this equation. Sub in values for A and B:
(32 + 42)1/2 = C (9 + 16)1/2 = C 251/2 = C 5 = C
Therefore the final answer is: 5m = C

HC
Answered by Harry C. Maths tutor

5926 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Katie wants to buy 4 adult show tickets for £10 each and 2 child show tickets for £3 each. There is a 10% booking fee and 3% is then added for paying by credit card. Work out the total charge for Katie if she pays with a credit card.


A rectangular path has perimeter of 240m. If the rectangle is split lengthways, two paths of 160m are formed. Work out the lengths of the sides of the original path.


Amy earns £6 for every hour she works Monday to Friday. She earns £8 for every hour she works on Saturday. One week Amy worked for 5 hours on Saturday - she earned £130 that week. How many hours did she work from Monday to Friday?


Given that x : y = 7 : 4 and x + y = 88, calculate x - y.


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