Given that 3cm and 4cm are the shorter sides of a right-angled triangle, find the length of the hypotenuse.

When given 2 known sides of a right angled triangle, we can use Pythagoras' Theorem to find the last unknown side. The formula follows as below:A2 = B2 + C2Where A represents the longest side of the triangle (the hyoptenuse) and B & C are the other 2 sides (does not matter which of the 2 sides are assigned to B or C). Substituting in 3cm and 4cm into B and C and then taking the sqaure root will give us our value for A which is 5 cm.A = Sqrt(9 + 16) = 5cm

Answered by Hamzah H. Maths tutor

4097 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

How can i use completing the square to factorise and solve equations


Solve the simultaneous equation: 2x + y = 18, x - y = 6


How do I expand and simplify a double bracket equation?


Factorise x^2+3x-4=0


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo
Cookie Preferences