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If a triangle has a base of 8 cm and a height of 5 cm, what is its area?

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Question: If a triangle has a base of 8 cm and a height of 5 cm, what is its area?

Options:

  1. 20 cm²
  2. 30 cm²
  3. 40 cm²
  4. 50 cm²

Correct Answer: 20 cm²

Solution: 

The area of a triangle is given by (1/2) × base × height. Therefore, the area is (1/2) × 8 cm × 5 cm = 20 cm².

If a triangle has a base of 8 cm and a height of 5 cm, what is its area?

Practice Questions

Q1
If a triangle has a base of 8 cm and a height of 5 cm, what is its area?
  1. 20 cm²
  2. 30 cm²
  3. 40 cm²
  4. 50 cm²

Questions & Step-by-Step Solutions

If a triangle has a base of 8 cm and a height of 5 cm, what is its area?
  • Step 1: Identify the formula for the area of a triangle, which is (1/2) × base × height.
  • Step 2: Write down the values for the base and height. The base is 8 cm and the height is 5 cm.
  • Step 3: Substitute the values into the formula: (1/2) × 8 cm × 5 cm.
  • Step 4: Calculate the multiplication: 8 cm × 5 cm = 40 cm².
  • Step 5: Now, multiply by (1/2): (1/2) × 40 cm² = 20 cm².
  • Step 6: Conclude that the area of the triangle is 20 cm².
  • Area of a Triangle – The area of a triangle is calculated using the formula (1/2) × base × height.
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