3^2 + 4^2 = x^2. Find x

By Pythagoras’s theorem, a2+b2= c2. So x2= 9+16=25 and so by finding the square root of 25, x=5

Answered by Luke M. Maths tutor

2357 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

How do I know when to use the cosine or sine rule?


The equation 5x^2 + px + q = 0, where p and q are constants, has roots t and t+4. Show that p^2 = 20q + 400.


Mixed rugby team of 20, 5 are female. 15 play at a time. i.) What is the percentage chance of a female playing. ii.)A minimum of three females must now be on the pitch. What is the percentage chance of 4 females playing?


The difference between two positive numbers is 50. The second number is 50 % smaller than the first one. What are the two numbers?


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