### Puzzle: Area of the shaded region

###
**Find the area of the shaded region in blue:**

- Provided that the triangle is a right angled triangle
- Hint: Area of Right angled triangle = 1/2(b.h) , where b is the base and h is the height

**>>CHECK YOUR ANSWER**

For this question, you can just use the area of the big triangle and subtract the little white triangle. Because the triangle is a right triangle, so the base is (5 + 4) = 9 and the height is 8

First, find the area of the big triangle:

1/2 * 8 * (5 + 4) = 36 square units

Secondly we need to find the area of the small white triangle:

1/2 * 8 * 5 = 20 square units

Lastly, subtract the small triangle from the big one:

36 - 20 = 16 square units

So

**16 square units**is the right answer.
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