How would you work out the length of an hypotenuse, if the length of the opposite side is 3 cm and the length of the opposite side is 4 cm?

You would use Pythagoras theorem, which states, a^2 + b^2 = c^2. Where a is the opposite side to the angle, b is the side adjacent to the angle and c is the hypotenuse.

So if a = 3 cm, and b = 4 cm, c^2 would equal: 3^2 + 4 ^2 = 9 + 16 = 25. If c^2 = 25, then c = 5. Therefore the length of the hypotenuse is 5cm.

OA
Answered by Othniel A. Maths tutor

3560 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Find the zeroes of the quadratic polynomial x^2 + 8x + 15.


Here is a right-angled triangle (base = 8cm and height = 9cm) and a rectangle (length = 16cm). The area of the rectangle is 6 times the area of the triangle. Work out the width of the rectangle.


A solution to the equation 2x^2-3x-17=0 lies between 2&3 use method of trail and improvement to find the solution


Show that (sqrt(3) + sqrt(75))^{2} = 108


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