Question

A tringular table whose sides are in a ratio 3 : 4: 5: and perimeter is 36 meter then find the area of a table

Answer 1

Answer:

Step-by-step explanation: let the sides be 3x 4x and 5x

A/Q,

3x+4x+5x=36

12x=36

X=3

Side1= 9cm

Side2=12cm

Side3=15cm

Therefore its area,

Area = √p(p−a)(p−b)(p−c) where p is half the perimeter

=√18(18-9)(18-12)(18-15)

=√18(9)(6)(3)

=√2916

=54cm²