To find the total area of the poster designed for the pep rally, we must break it down into parts according to the coordinate points provided.
Step 1: Identify the shapes and their dimensions
-
Quadrilateral ABCD:
- Points: A(4, 2), B(4, 12), C(8, 12), D(8, 2)
- This shape is a rectangle with:
- Base = \(C_x - A_x = 8 - 4 = 4\) meters
- Height = \(B_y - A_y = 12 - 2 = 10\) meters
- Area of rectangle ABCD: \[ \text{Area}_{ABCD} = \text{Base} \times \text{Height} = 4 , \text{m} \times 10 , \text{m} = 40 , \text{square meters} \]
-
Triangle EFG:
- Points: E(2, 2), F(6, 18), G(10, 2)
- This triangle has:
- Base = \(G_x - E_x = 10 - 2 = 8\) meters (the line segment between E and G)
- Height = \(F_y - E_y = 18 - 2 = 16\) meters (the vertical distance from point F down to the line containing E and G)
- Area of triangle EFG: \[ \text{Area}_{EFG} = \frac{1}{2} \times \text{Base} \times \text{Height} = \frac{1}{2} \times 8 , \text{m} \times 16 , \text{m} = 64 , \text{square meters} \]
Step 2: Calculate total area
Now, since the total area of the poster includes the area of rectangle ABCD and the area of triangle EFG, we can combine these areas:
\[ \text{Total Area} = \text{Area}{ABCD} + \text{Area}{EFG} = 40 , \text{square meters} + 64 , \text{square meters} = 104 , \text{square meters} \]
Summary for the Queries
- Query 1: The area of the composed rectangle (the area of quadrilateral ABCD) is 40 square meters.
- Query 2: The base of the triangles that need to be subtracted is 8 meters.
- Query 3: The height of the triangles is 16 meters.
- Query 4: The area of triangle EFG is 64 square meters.
- Query 5: The total area of the figure is 104 square meters.
Final Responses
- The bottom portion of the figure, quadrilateral ABCD, may be composed into a larger rectangle with base 4. The area of this composed rectangle is 40 square meters.
- The triangles that need to be subtracted from the composed rectangle to find the area bounded by each have a base of 8 meters and a height of 16 meters.
- The area of triangle EFG is 64 square meters.
- The total area of the figure is 104 square meters.