A right angled triangle has sides of length 3 and length 4, what is the length of the hypotenuse?

using pythagorus ( c^2 = b^2 + a^2) and plugging in 3 and 4 as a and b we get c^2 = 3^2 + 4^2 = 9 + 16 = 25. Taking the positive square root as sides can't be negative we get c = 5

KR

Related Maths GCSE answers

All answers ▸

Write x^2 – 10x + 12 in the form (x – a)^2 + b , where a and b are integers.


y is proportional to x^2 and that when y = 75, x = 5. Find a formula for y in terms of x and find y when x=3


When do two simultaneous equations have a solution?


Solve the equation x2-7x=-10