Question

in the figure ,ABC is a right angled triangle .where ab =9cm and bc=40cm.find the area of abc ,find the lenght of abc,the lenght of BD correct to two places of decimal​

Answer 1

Answer:

(AC)²=(9)²+(40)²

(AC)²=49+1600

(AC)²=1649

AC=√1649

AC=40.60cm