1. Mr. Chong's crazy caffeinated dog is on a 20 m leash in a yard where the leash is staked to the ground. The yard is not fenced but bordered by a sidewalk. Suppose you are standing on the sidewalk. The angle between the sidewalk and the line joining you and the stake is 67. If you are 21 m from the stake, what length of sidewalk can the crazy dog reach? you dog sidewalk 2. Suppose a Math 20H student is admiring a statuc 100m away( | wonder who?77). After a while the student starts to walk along a road and decides (o stop and admire the statue once more, This time the student is 80 m away from the statue. This person could have stopped at two points where they were 80 m away from the statue. Find the two different lengths they could have walked from the start to stop position. 5 & - Road start 3. Given the diagram below showing two concentric circles(circles that share the same centre) with radii | umit for the smaller circle and 2 units for the larger, if AGB=E, find {a) the arca of the shaded region i (b) the perimeter of the shaded region