Question

In Fig. 10.15, the angle BAC is a right angle and AD
is perpendicular to BC ; AB = 4 cm, AC = 3 cm and
BD = x. Calculate x.​

Answer 1

Answer:

using pythagoras theorm,

c=sqr root of a×a + b×b

since ,

a=4 cm

b=3cm

c=4×4+3×3

c=16+9

=25

as it is in sqr. root

it will be 5 cm (ans).