# A triangle has sides 5cm, 12cm, 13cm. The length of the perpendicular from the opposite vertex to the side whose length is 13cm is?

##### 2 Answers

Below.

#### Explanation:

It is clear that the triangle is a right angled triangle.

Let AB=12 cm BC=5 cm and AC=13 cm

Now a perpendicular is drawn from A to AC.

Putting the respective values of the sides we get,

You can also apply the heron's formula to get the answer to the question.

#### Explanation:

The given side of triangle are

The semi-perimeter

Now, using Heron's formula, the area

If