Question

What is the perimeter of ABC?Perimeter = ___ units.​

Answer 1

Answer:

12 units

Step-by-step explanation:

From the given figure,

AB=4 units & BC=3 units

By Pythagoras Theorem, $AC^{2} = AB^{2} + BC^{2}$

Here, $AC^{2} = 4^{2} + 3^{2}$

Thus, AC=5 units

Now, perimeter of triangle is equal to the sum of all sides.

Perimeter = AB + BC + AC = 4 + 3 + 5 = 12 units