# What will be the Approximate Area of the Triangle? If

The lengths of the three sides of a triangle are 35 cm, 40 cm and 45 cm respectively. The approximate area of the triangle will be

- 670.82 cm
^{2} - 762.82cm
^{2} - 678.82cm
^{2} - 760.82cm
^{2}

**Answer: (1) 670.82 cm ^{2}**

Explanation:-

**Formula – The Area of the triangle = √**

**S(S – a) (S – b) (S – c)**

Where, S = (a + b + c)/2 , a, b and C are of the side of a triangle.

Where, S = (a + b + c)/2 , a, b and C are of the side of a triangle.

Then, a = 35, b = 40 and c = 45

S = (35 + 40 + 45)/2

= 120/2

S = 60 cm

Then, the area of the triangle = **√**60(60 – 35) (60 – 40) (60 – 45)

= **√**60 x 25 x 20 x 15

= **√** 45,000

= 670.82 cm^{2}

Then, the area of the triangle is 670.82 cm^{2}.

Hence, the answer is (1) 670.82 cm^{2}.