Standard Mathematics Primary 5 Area of Triangle

A rectangular plot of land in Queenstown is 30 m long and 20 m wide. A triangular section is marked inside the plot for a community garden. The base of the triangle equals the length of the rectangular plot, and the height of the triangle equals half the width of the rectangular plot. What is the area of the triangular community garden?

A 75 m²
B 150 m²
C 300 m²
D 600 m²
Show Worked Solution

Worked Solution

Step 1: Identify the base and height of the triangle. Base = length of rectangle = 30 m Height = half the width of rectangle = ½ × 20 = 10 m Step 2: Apply the area formula for a triangle. Area = ½ × base × height Area = ½ × 30 × 10 Step 3: Calculate. ½ × 30 = 15 15 × 10 = 150 m² Answer: The area of the triangular community garden is 150 m². Answer: 150 m²

Correct answer: 150 m²

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