Please answer it completely

1. A circle has a diameter of 20cm. What is the circumference of a circle?

2. An equilateral triangle measures 9 feet on each side. What is its perimeter?

3. An isosceles triangle measures 24 inches on its sides and 8 inches along its base. What is its perimeter?

4. The radius of a circle is 14 cm. What is its circumference?

5. A quadrilateral has the following measurements: 5 cm, 9 cm, and 12 cm. What is its perimeter?

6. What is the circumference of a circle with 10 cm radius?

7. A circle has 180 cm in diameter. What is the circumference?


Thank you po