Question

The legs of a right triangle are 5m and 12m long. What is the length of the hypotenuse? Explain how you found your answer.

Answer 1

use Pythagorean theorem

Answer 2

a^2 + b^2 = c^2

Answer 3

The solution to this is one of the so-called "Pythagorean triples" — sets of \(a,b,c\) where all 3 are integers and satisfy \(a^2+b^2=c^2\). The most famous one is of course 3,4,5. This one is maybe the second most famous :-)

Carpenters use the 3,4,5 triple all the time with a ruler to make square corners.

Answer 4

is it 169?

Answer 5

@ivettef365

Answer 6

@whpalmer4

Answer 7

what is the square root of 169?

Answer 8

\[c^2 = 5^2+12^2 = 25+144 = 169\]but you need \[c = \sqrt{169}=\]

Answer 9

13

Answer 10

@whpalmer4

Answer 11

correct