Question

In rngl ABC,A=90°,BC=13cm,AB=12cm. Wich of the following is the value of ac

Answer 1

Here BC is hypoteneous
:: bc^2 = ab^2 + ac^2
13^2 = 12^2 + ac^2
169 = 144 +ac^2
ac^2 = 25
""ac = 5""