What is the length of the hypotenuse of a right triangle if the two other sides are of lengths 4 and 2?
1 Answer
Jun 5, 2018
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#
