Question

The perimeter of a triangular plot is 240 m. If two of its sides are 78 m and 50m,
and the length of perpendicular on the side of length 50 m from the opposite​

Answer 1

Answer:

Given, perimeter =240 m, two sides are 78m and 50 m

Here s=

2

240

=120

Therefore, third side of the triangle =240−(78+50)=112 m

Area of the triangle =

s(s−a)(s−b)(s−c)

=

120×42×70×8

=

12×10×6×7×7×10×8

=10×7×6×4

=1680

Area of the triangle is also =

2

1

×50×p=25 p

Therefore, 25p=1680 ⇒p=67.2 m