Answers>Maths>GCSE>Article

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

6590 Views

See similar Maths GCSE tutors

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

Related Maths GCSE answers

State the nth term of the following sequence: 3, 7, 11, 15, 19

How do I expand (x-2)(3x+3) into a quadratic?

Give the possible values of x when 2x^2-x-6=0

f(x) = 2x + c, g(x) = cx + 5, fg(x) = 6x + d. c and d are constants. Work out the value of d. 3 marks.