3. One side of a triangle has length 8 and a second side has length 5. Which of the following could be the area of the triangle?
Select ALL that apply.
9. All the dots in the array are 2 units apart vertically and horizontally. What is the length of the longest line segment that can be drawn joining any two points in the array without passing through any other point ?
10. If the radius of the circle with centre O is 7 and the measure of angle AOB is 100, what is the best approximation to the length of arc AB ?