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A triangle has a base of 8 cm and a height of 5 cm. What is its area?

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Question: 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: 

Area = 1/2 × base × height = 1/2 × 8 cm × 5 cm = 20 cm².

A triangle has a base of 8 cm and a height of 5 cm. What is its area?

Practice Questions

Q1
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

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 Area = 1/2 × base × height.
  • Step 2: Find the base of the triangle, which is given as 8 cm.
  • Step 3: Find the height of the triangle, which is given as 5 cm.
  • Step 4: Substitute the base and height into the formula: Area = 1/2 × 8 cm × 5 cm.
  • Step 5: Calculate 1/2 of 8 cm, which is 4 cm.
  • Step 6: Multiply 4 cm by 5 cm to get 20 cm².
  • Step 7: Conclude that the area of the triangle is 20 cm².
  • Area of a Triangle – The area of a triangle is calculated using the formula: Area = 1/2 × base × height.
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