Question

triangle ABC is right angled at A. AD is drawn perpendicular to BC if AB = 5 cm and AC = 1 cm find the area of triangle ABC also find the length of AD

Answer 1

Area of triangle = ½ × base AB × h

area = 2.5 cm²

by Pythagoras theorem,

BC = √26

area of triangle = ½ x base BC x height

2.5 = ½ × √26 x height AD

AD = 5/√26