Math Problem Statement

Find the area of the figure by first finding the areas of the rectangle and triangle.

Solution

To determine the total area of the figure, we first divide it into a rectangle and a triangle, as shown in the problem.


Step 1: Find the dimensions of the rectangle and triangle

  • Rectangle:

    • Width = 3 units (horizontal length)
    • Height = 1 unit (vertical height)
  • Triangle (below the rectangle):

    • Base = 3 units (same as the rectangle's width)
    • Height = 3 units (vertical distance from the rectangle's bottom to the triangle's tip)

Step 2: Calculate the area of the rectangle

The formula for the area of a rectangle is:
Area=Width×Height\text{Area} = \text{Width} \times \text{Height}
Substitute the values:
Area=3×1=3square units.\text{Area} = 3 \times 1 = 3 \, \text{square units.}


Step 3: Calculate the area of the triangle

The formula for the area of a triangle is:
Area=12×Base×Height\text{Area} = \frac{1}{2} \times \text{Base} \times \text{Height}
Substitute the values:
Area=12×3×3=92=4.5square units.\text{Area} = \frac{1}{2} \times 3 \times 3 = \frac{9}{2} = 4.5 \, \text{square units.}


Step 4: Total area of the figure

The total area is the sum of the rectangle's and triangle's areas:
Total Area=3+4.5=7.5square units.\text{Total Area} = 3 + 4.5 = 7.5 \, \text{square units.}


Final Answers:

  • Area of the rectangle = 3 square units
  • Area of the triangle = 4.5 square units
  • Area of the figure = 7.5 square units

Would you like a detailed explanation for any step?


Related Questions:

  1. How do you find the area of other composite figures like trapezoids or parallelograms?
  2. What is the formula for the area of a trapezoid, and how does it relate to this problem?
  3. How do you calculate areas on a grid without formulas?
  4. Can this figure's area be verified using another method?
  5. What happens if the units are scaled to a different size?

Tip:

Always break complex shapes into simpler ones (rectangles, triangles, etc.) to calculate their areas step by step.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Area of Rectangles
Area of Triangles
Geometry on a Grid

Formulas

Area of a Rectangle = Width × Height
Area of a Triangle = 1/2 × Base × Height

Theorems

Area Calculation using Decomposition

Suitable Grade Level

Grades 5-7