What is the length of the hypotenuse of a right triangle if the two other sides are of lengths 4 and 2?

1 Answer
Jim G.
Jun 5, 2018

2sqrt5~~4.47" to 2 dec. places"

Explanation:

"using "color(blue)"Pythagoras' theorem"

"square of hypotenuse "=" sum of squares of other 2 sides"

"let the hypotenuse "=h" then"

h^2=4^2+2^2=16+4=20

h=sqrt20=sqrt(4xx5)=sqrt4xxsqrt5=2sqrt5~~4.47

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