Allan Kelley
08/14/2024 · Middle School
Eicercise C 1. What is the area of a triangle wich a base of 25 mm and a height of 4 cm ? 2. The area of a right-angled criangle is \( 6 \mathrm{~cm}^{2} \). The base is 4 cm long. What is 3. A criangle of 12 cm high has an area of \( 48 \mathrm{~cm}^{2} \). What is the lengeh of its bas 4. Calculate the area of each of the following. a. A rectangle with a length of \( 12,5 \mathrm{~cm} \) and a breadth of 15 mm b. A square with one side \( 13,5 \mathrm{~cm} \) long c. A square with a perimeter measurement of 100 cm d. A reccangle with a perimeter of 16 m and one side 3 m long
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1. Area of the triangle: \( 5 \, \text{cm}^2 \)
2. Height of the right-angled triangle: \( 3 \, \text{cm} \)
3. Length of the base of the triangle: \( 8 \, \text{cm} \)
4. Areas:
- a. Rectangle: \( 18.75 \, \text{cm}^2 \)
- b. Square: \( 182.25 \, \text{cm}^2 \)
- c. Square with perimeter 100 cm: \( 625 \, \text{cm}^2 \)
- d. Rectangle with perimeter 16 m: \( 15 \, \text{m}^2 \)
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