Question

What is the area of the obtuse triangle given below

Answer 1

Answer:

Option D 9 sq units

Step-by-step explanation:

we know that

The area of a triangle is equal to

$A=\frac{1}{2}(b)(h)$

where

b is the base

h is the height

In this problem we have

$b=9\ units\\h=2\ units$

substitute in the formula

$A=\frac{1}{2}(9)(2)$

$A=9\ units^2$

Answer 2

Answer: D. 9 sq. units.

Step-by-step explanation:

We know that , the area of a triangle = $\dfrac{1}{2}\times \text{Base x height}}$

In the given picture , it can be seen that the height of the triangle = 2 units

and base length of triangle = 9 units

Then, the area of a triangle = $\dfrac{1}{2}\times9\times2$

i.e. Area of a triangle = 9 square units.

Hence, the correct answer is option D. 9 sq. units.