Find the area and perimeter of a right-angled triangle ABC with sides AB = 5cm, BC = 3cm, AC = 4cm.

Let’s find the value of the perimeter of this triangle, for this it is necessary to add the lengths of all three sides of this triangle:

5 + 3 + 4 = 12 cm – the value of the perimeter of the triangle given to us;

Let’s find the value of the area of ​​the given right triangle, for this we need to multiply the value of the length of one leg by the value of the length of the other leg of the given triangle and divide the result by two:

1/2 * 3 * 4 = 6 cm2 – the value of the area of ​​this right-angled triangle.

Answer: 12 cm is the value of the perimeter of the triangle given to us; 6 cm2 is the value of the area of ​​this right-angled triangle.