What is the area of a quadrilateral with a height of 7, if one side ha

Can someone pls tell how is the answer E and not C?

Acouple of posts above you, I have posted why it is E. Hope that helps helishah142

Hi ! chetan2u

Thought about this question again. Here is my new interpretation. Please let me know if I am wrong anywhere.
1---- A parallelogram is divided by diagonal into two symmetric (maybe congruent if square) triangles.
So this just tells us that the quadrilateral is some parallelogram. Still we need another side to calculate the area


Am i right with this one (Need a check here). Anyways, ill go on.

2--- By perimeter you cannot ascertain the unique value of base to find out area of triangle.

Combining 1+2,

This parallelogram is some rectangle not a square otherwise perimeter would have been 40.
so 2(x+y) = 42 or x+y = 21 . One of the sides is 10(given), therefore the other side must be 11.
Area = 7*10 or 7*11 we dont know. Therefore insufficient.

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