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To solve this problem, let's calculate the area of the given right-angled triangle.

### Formula:
The area \( A \) of a right-angled triangle is calculated using:
\[
A = \frac{1}{2} \times \text{base} \times \text{height}
\]

### Given:
- Base \( b = 18 \, \text{m} \)
- Height \( h = 5 \, \text{m} \)

### Calculation:
\[
A = \frac{1}{2} \times 18 \, \text{m} \times 5 \, \text{m}
\]
\[
A = \frac{1}{2} \times 90 \, \text{m}^2
\]
\[
A = 45 \, \text{m}^2
\]

### Answer:
The area of the right-angled triangle is **45.0 m²** (rounded to 1 decimal place).

Would you like further details or have any other questions?

Here are 5 related questions you might find interesting:
1. How do you find the area of a triangle that is not right-angled?
2. What other methods can be used to verify the area of a triangle?
3. How do the base and height affect the area of a triangle?
4. What is the Pythagorean theorem, and how can it be used with right-angled triangles?
5. How can you determine the hypotenuse of a right-angled triangle given its area?

**Tip:** Always ensure that the base and height you use for calculations are perpendicular to each other when finding the area of a triangle.

Calculate the area of this right-angled triangle with a base of 18 meters and a height of 5 meters. Give your answer to 1 decimal place.

Learn how to calculate the area of a right-angled triangle with a base of 18 meters and a height of 5 meters. This step-by-step guide includes the key formula and important mathematical concepts involved, making it suitable for students in Grades 6-8.

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