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

LM

Related Maths GCSE answers

All answers ▸

There is a Wheel of Fortune. The Wheel is numbered 1-15. Each section is equal in size. If the spinner lands on your number you win a prize. Ali has the number 6. What is the probability that he wins a prize? Give answer as percentage to 2 d.p


How to expand double brackets?


Solve x^2+6x+5=0


Solve 5x – 2 > 3x + 11