These are the steps: 1. Find the area of the trapezium {Whole figure). 2. FInd the area of the rectangle (unshaded). 3. Area of the shaded = Area of trapezium - Area of the rectangle.
<u>Step 1: Find the area of the trapezium</u>:
Formula : Area of trapezium = 1/2 (a + b)h
Area = 1/2 ( 25 + 15) (12) = 240 yd²
<u>Step </u><u>2 :</u><u> Find the area of the rectangle</u>:
For this case we can model the problem as a rectangle triangle. We have: Length of the sides of the triangle. We want to find: Length of the hypotenuse. Using the Pythagorean theorem we have: Answer: She is: miles far from her starting point