Question

in triangle ABC the sides AB and AC are equal .Also BC = 6cm and angle B 37 degree . Find the altitude through A​

Answer 1

Answer:

Here altitude from A to BC is AD, we know in isosceles altitude on non equal sides also median,

so, BD=CD=

2

BC

=

214=7cm

Now, we applying Pythagoras theorem in △ABD,

AB

2

=BD 2 +AD

2(25)

2 =(7) 2 +AD 2AD 2

=625−49

AD 2 =576

AD=24cm

∴ Altitude from A to BC=AD=24cm