Maths-

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Easy

Question

# Sides of triangle are 100 m, 120 m and 140 m. Find its area

Hint:

### Use Heron’s formula

## The correct answer is: 2.44

### It is given that a = 100 , b = 120 and c = 140

Using Heron’s formula

Area of triangle = where s =

s = = 180

Area of triangle

=

=

= 100

= 2400 cm^{2}

= 5878.76 cm^{2} ( = 2.44)

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