Q2 of 50 Page 12

Find the area of a triangle whose sides are 3 cm, 4 cm, and 5 cm respectively.

Let a, b and c are the sides of triangle and s is


the semi-perimeter, then its area is given by:


A = where [Heron’s Formula]


= = 6


A=


A = = cm2


More from this chapter

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14

A triangle and a parallelogram have the same base and the same area. If the sides of the triangle are 13 cm, 14 cm and 15 cm and the parallelogram stands on the base 14 cm, find the height of the parallelpgram.

 1

Find the area of a triangle whose base and altitude are 5 cm and 4 cm respectively.

 3

Find the area of an isosceles triangle having the base x cm and one side y cm.

 4

Find the area of an equilateral triangle having each side 4 cm.