Question

find the area of triangle two side of which are 8 cm and 11cm and the perimeter is 32 Cm ​

Answer 1

Answer

Given ,

• the two side of triangles are 8cm and 11cm
• The perimeter of the triangle is 32cm .

To find ,

• The area of the triangle

Here ,

• p = 32cm
• side a = 8cm
• side b = 11cm

To find the side "c" = 32cm - (8+11)cm = 13cm .

So, side c is 13cm .

Now ,

2s = 32

=> s = 32/2

=> s =>16

So ,

• s-a = (16-8) = 8cm
• s-b =(16-11) = 5cm
• s-c = (16-13) =3cm

Therefore ,

Area the triangle = √s(s-a)(s-b)(s-c)

Area of the triangle = √16×8×5×3 cm^2

Area of the triangel = 8√30cm^2

The area of the Triangle is 8√30cm^2 .