Question:
One side of a triangle has length 8 and a second side has length 5. Which of the following could be the area of the triangle?
I 24
II 20
III 5

Option A):
III only
Option B):
I, II and III
Option C):
II and III only
Option D):
II only

Correct Answer is Option C):
II and III only

Explanation:
The maximum area of the triangle will come when the given sides are placed at right angles. If we take 8 as the base and 5 as the height the area =  x 8 x 5 = 20
We can alter the angle between the sides to make it less or more than 90, but this will only reduce the area. (Draw it out for yourself). Hence the area can be anything less than or equal to 20.