Question

find the area.......AB is 12cm, BC is 13cm, AC is 5cm​

Answer 1

Answer:

∆=1/2×AB×BC

= 1/2×12×13

=78

Answer 2

Step-by-step explanation:

In right angles triangle ABC, AB=12cm, BC=13cm and AC=5cm

Area of triangle=

2

1

×base×height=

2

1

×AB×AC

=

2

1

×5×12=30cm

2

Now, in ΔABC,

Area of triangle ABC=

2

1

×BC×AD

⇒30=

2

1

×13×AD

⇒ AD=

13

30×2

=

13

60

cm.