Question

Find the area of triangle , two sides are 13cm and 12 cm and perimeter is 30 m.​

Answer 1

Answer:

3rd side of the triangle will be 5 CM

Answer 2

Answer:The area of a triangle if two sides are 13cm and 12 cm and the perimeter is 30cm is 30cm2

Answer:The area of a triangle if two sides are 13cm and 12 cm and the perimeter is 30cm is 30cm2step by step explaination:

Let ∆ABC is a triangle

Values of two sides and perimeter are given

Let AB = 13 , BC = 12 , CA = CA

perimeter of triangle is sum of all sides

So, 30 = 13 + 12 + CA

CA = 30- 25

CA = 5 CM

We can observe that the sides satisfy Pythagoras theorem . So it is a right angled triangle.

AB2 = BC2 + CA2

So here AB is hypotenuse

So we can BC as base of the triangle and CA as height

Area of triangle = ½ bh

Area of triangle = ½ 12×5

Area of traingle = 30 cm2