Question

Which is the correct formula to find the area of ABC?

Answer 1

Answer:

none of them

Step-by-step explanation:

The area (A) of a triangle is calculated as

A = 0.5 × base × perpendicular height

Here the base is BC and perpendicular height is AD, hence

Area of ΔABC = 0.5 × BC × AD

Answer 2

Answer:  C. $\text{area of }\triangle ABC=\dfrac{1}{2}\times BC\times AD$

Step-by-step explanation:

The common formula is used to find the area of a triangle is

$\dfrac{1}{2}\times\text{base}\times\text{altitude}$

In the given picture , we have a triangle ABC , in which Altitude (making right angle with base) of triangle = AD with corresponding base = BC

Thus , the area of the triangle will be :

$\text{area of }\triangle ABC=\dfrac{1}{2}\times BC\times AD$

Therefore , the correct options is

C. $\text{area of }\triangle ABC=\dfrac{1}{2}\times BC\times AD$