Question

ABC is a right triangle with a right angle A, and AN is the altitude on the hypotenuse. If BN=4 and NC=1 find AN.

Answer 1

9

Explanation:

using pythagoras theorem

hyp²=opp²+adj²

hyp²=4²+1²

hyp²=16+2

hyp²=18

hyp=√18

hyp=9