Question

What is the area of this triangle?

• A. $42$ square cm
• B. $24$ square cm
• C. $42$ cm
• D. (a) and (c) above.

Answer 1

The correct option is A $42$ square cm

We know that,
area of a triangle $=\frac{1}{2}\times h\times b$

Here, the $h$ is given as $7$ cm and the $b=12$ cm
Therefore, area $=\frac{1}{2}\times 12\times 7$
$=\frac{84}{2}$
$=42$ square cm

Since it is area, the unit will be in square cm, thus option (a) is correct.