Foundation Mathematics Primary 5 Area of Triangle

A composite figure is made up of two triangles. Triangle A has a base of 8 cm and a height of 5 cm. Triangle B has a base of 6 cm and a height of 4 cm. What is the total area of the composite figure?

A 32 cm²
B 44 cm²
C 20 cm²
D 64 cm²
Show Worked Solution

Worked Solution

Step 1: Find the area of Triangle A. Area of Triangle A = ½ × base × height = ½ × 8 × 5 = 20 cm² Step 2: Find the area of Triangle B. Area of Triangle B = ½ × base × height = ½ × 6 × 4 = 12 cm² Step 3: Add both areas. Total area = 20 + 12 = 32 cm² Answer: 32 cm².

Correct answer: 32 cm²

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