Find the area of triangle whose sides are 42cm,34 cm and 20cm in length. Hence find the height corresponding to the longest side.
Given,
a = 42 cm
b = 34 cm
c = 20 cm
Therefore,
=
= 48
We know that,
Area =
Putting the values of a, b and c in the formula, we get
=
=
=
= 4 × 3 × 2 × 14
= 336 cm2
Longest side of the triangle = b = 42 cm
Let h be the corresponding height to the longest side
Therefore,
Area of triangle =
336 =
42 × h = 336 × 2
h =
= 16 cm
Hence, corresponding height of the triangle is 16 cm