Problem
Question 9 of 26 If the rectangle below has an area of \( 40 \mathrm{sq} \). units, what is the area of the triangle? A. \( 40 \mathrm{sq} \). units B. 28 sq. units C. 14 sq. units D. 20 sq. units
Solution
Step 1 ：Let the length of the rectangle be \(l\) and the width be \(w\).
Step 2 ：Area of Rectangle = \(l \times w = 40\).
Step 3 ：Area of Triangle = \(\frac{1}{2}lw = \frac{1}{2}(40) = 20 \mathrm{sq} \). units
