Answer: The area of the triangle is given by the formula:
Area = (base * height) / 2
We are told that the area is less than 18 square inches, so we can write the inequality:
(base * height) / 2 < 18
Multiplying both sides by 2, we get:
base * height < 36
To find the possible values of "a", we need to isolate "base" on one side of the inequality. Let's assume that the base is equal to "a". Then we have:
a * height < 36
Dividing both sides by height, we get:
a < 36 / height
Since the height is 6 inches, we can substitute it in the inequality:
a < 36 / 6 = 6
So the possible values of "a" are any value less than 6 inches. That is,
0 < a < 6.
Explanation: