What is the area of triangle abc?
3 square units
7 square units
11 square units
15 square units

7 square units.

Step-by-step explanation:

We could use put a rectangle around the shape box. That would leave you with 3 other triangles and subtract that from the rectangles to get the primary triangle. so the 3 triangle areas are 2.5, 1.5, and 4. if you add those u get 8. The rectangle is 15 sq units so 15-8 is 7.

For this case we have to find the area through Heron's formula:

Where:

s: It's half the perimeter of the triangle

a, b, c are the sides.

We can find the sides by equating the distance between two points:

We found BC:

We found CA:

So, half of the perimeter is:

Thus, the area is:

Rounding we have that the area is 7 square units

Option B

answer: sherk

step-by-step explanation:

just give up and watch the best anime ever sherk