Question

In triangle ABC,angle A =90°and AD perpendicular to BC.If AB=1 2cm then find ar(triangle ABC )and length of AD.​

Answer 1

Step-by-step explanation:

area of ∆ABC=1/2*altitude*base

=1/2*12*5=30cm²

by Pythagoras theorem BC=13cm

30=1/2*13*AD

AD=60/13=4.5cm

Answer 2

Answer:

your answer is4.5............