Answer:
The length of the base of the rectangle is 20 feet.
Step-by-step explanation:
To estimate the area of a trapezoid-shaped stage by composing a rectangle, we need to consider that the trapezoid can be decomposed into a rectangle and a right triangle.
Here's how we can do it
1. :Identify the lengths of the parallel sides of the trapezoid. Let's call them aa and bb.
2. Identify the height of the trapezoid. Let's call it hh
3.The length of the base of the rectangle will be the sum of the lengths of the parallel sides of the trapezoid, a+ba+b.Let's say the lengths of the parallel sides of the trapezoid are a=8a=8 feet and b=12b=12 feet. To find the length of the base of the rectangle, we add these two lengths: 8+12=208+12=20 feet.
