1. Why is the formula for triangle a half?

4. If the radius is 5cm, find the area of the shaded region.

5. There is a water reservoir beneath a circular garden to supply a fountain in the garden. The reservoir has a 26-inch diameter. The garden has a 12-foot diameter. How much of the garden does not contain the water reservoir?

6. A large pizza has a diameter 35cm. Two large pizzas cost $19.99. A medium pizza has a diameter 30 cm. Three medium pizzas cost $24.99. Which is the better deal: 2 large pizzas or 3 medium pizzas?

7. A rectangular swimming pool measures 25ft by 50ft and has a 6 foot wide sidewalk around it. How much fencing is needed to enclose the sidewalk and what is the area of the sidewalk?

9. Find area

10. Exit ticket