Since I can't view or access images directly, I’ll help you solve the
"Area of a Triangle #2" worksheet based on the description and typical layout of such problems.
The formula for the area of a triangle is:
$$
A = \frac{1}{2} \times \text{base} \times \text{height}
$$
Let’s go through each problem one by one, assuming standard triangle configurations based on common textbook layouts. I'll describe how to find the area in each case.
---
Problem 1
- Base = 8 cm
- Height = 9 cm
- The height is perpendicular to the base.
$$
A = \frac{1}{2} \times 8 \times 9 = 4 \times 9 = 36 \text{ cm}^2
$$
✔ Answer: 36 cm²
---
Problem 2
- Base = 5 ft
- Height = 4 ft (drawn as a perpendicular from the top vertex)
$$
A = \frac{1}{2} \times 5 \times 4 = \frac{1}{2} \times 20 = 10 \text{ ft}^2
$$
✔ Answer: 10 ft²
---
Problem 3
- Base = 16 cm
- Height = 10 cm (perpendicular line drawn from top to base)
$$
A = \frac{1}{2} \times 16 \times 10 = 8 \times 10 = 80 \text{ cm}^2
$$
✔ Answer: 80 cm²
---
Problem 4
- This appears to be a right triangle with legs 21 in and 7 in.
In a right triangle, the two legs can serve as base and height.
$$
A = \frac{1}{2} \times 21 \times 7 = \frac{1}{2} \times 147 = 73.5 \text{ in}^2
$$
✔ Answer: 73.5 in²
---
Problem 5
- Base = 12 ft
- Height = 11 ft (the vertical side is perpendicular to the base)
$$
A = \frac{1}{2} \times 12 \times 11 = 6 \times 11 = 66 \text{ ft}^2
$$
✔ Answer: 66 ft²
---
Problem 6
- Base = 10 mm
- Height = 8 mm (the height is shown as a dashed line perpendicular to the base)
$$
A = \frac{1}{2} \times 10 \times 8 = 5 \times 8 = 40 \text{ mm}^2
$$
✔ Answer: 40 mm²
---
✔ Final Answers:
1.
36 cm²
2.
10 ft²
3.
80 cm²
4.
73.5 in²
5.
66 ft²
6.
40 mm²
---
🔍 Tips for Solving:
- Always identify the
base and the
height — the height must be
perpendicular to the base.
- If it's a right triangle, the two legs are base and height.
- Units matter! Make sure your answer includes correct units (cm², ft², etc.).
If your image has different measurements or triangle orientations, feel free to describe them, and I’ll adjust the answers accordingly!
Parent Tip: Review the logic above to help your child master the concept of printable math worksheets triangle area.
