Actually to find out the area of the given triangle we don't need to know the measurements of y nor z. Base length x and height h are enough as the formula for triangle's area is 1/2xh.
A = 1/2 * x * h A = 1/2 * 15 * 6 A = 15 * 3 A = 45
Answer: Area of the given triangle is <u>45 square inches</u> (answer B).