Question

8. Triangle ABC is right angled at A. AD is drawn perpendicular to BC. If AB = 5 cm and
AC = 12 cm, find the area of AABC. Also find the length of AD.
​

Answer 1

Answer:

In right angles triangle BAC, AB=5cm and AC=12cm

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.

Step-by-step explanation:

I hope this helps you