To find the area of Triangle C, we need to decompose it into two smaller triangles and rearrange them to form a rectangle.
The height of Triangle C is 7 units and the base is 9 units. By decomposing it into two triangles, we can see that the two smaller triangles each have a base of 4.5 units and a height of 7 units.
Rearranging these two triangles, we can form a rectangle with dimensions 9 units by 7 units.
Therefore, the area of Triangle C is 9 units * 7 units = 63 square units.
So the correct answer is:
21 square units
Use the image to answer the question.
An illustration shows a 5 by 9 grid labeled Triangle C. Triangle C is graphed on the grid.
Use decomposition and rearranging to model the area formula of triangle C . What is the area of triangle C in square units?(1 point)
Responses
10.5 square units
10.5 square units
10.5 cubic units
10.5 cubic units
10.5 units
10.5 units
21 square units
1 answer
1 answer