Answer: option c
Step-by-step explanation:
You need to use this formula:
[tex]A=\frac{h}{2}(B+b)[/tex]
Where "h" is the height of the trapezoid, "B" is the larger base and "b" is the smaller base.
You know that:
[tex]B=16.8yd\\b=6.9yd\\h=2yd[/tex]
Then you need to substitute these values into the formula [tex]A=\frac{h}{2}(B+b)[/tex].
Therefore, the area of this trapezoid is:
[tex]A=\frac{2yd}{2}(16.8yd+6.9yd)[/tex]
[tex]A=23.7yd^2[/tex]
