B.) 9 cm
Explanation: thats shape is a trapezoid
The formula for the area of a trapezoid is:
Base + Base divided by 2 x height
If we follow that formula, in this case it will be:
4.9 + 9.9/2 x h = 66.6
4.9 + 9.9 = 14.8
14.8/2 = 7.4
Now, we need to find the missing height.
We will divide the area (66.6 cm2) by 7.4
66.6/7.4 = 9
The missing height is 9cm2.
MARK BRAINLIEST PLS
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