1. Problem 17: Find the total distance an ant travels from point (3,4) to (6,10), then from (6,10) to (10,18) in the Cartesian plane.
2. To find the distance between two points $(x_1,y_1)$ and $(x_2,y_2)$, use the distance formula:
$$d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$$
This formula comes from the Pythagorean theorem, where the difference in x-coordinates and y-coordinates form the legs of a right triangle.
3. Calculate the distance from $(3,4)$ to $(6,10)$:
$$d_1 = \sqrt{(6 - 3)^2 + (10 - 4)^2} = \sqrt{3^2 + 6^2} = \sqrt{9 + 36} = \sqrt{45} = 3\sqrt{5}$$
4. Calculate the distance from $(6,10)$ to $(10,18)$:
$$d_2 = \sqrt{(10 - 6)^2 + (18 - 10)^2} = \sqrt{4^2 + 8^2} = \sqrt{16 + 64} = \sqrt{80} = 4\sqrt{5}$$
5. Total distance traveled by the ant is the sum:
$$d_{total} = d_1 + d_2 = 3\sqrt{5} + 4\sqrt{5} = 7\sqrt{5}$$
1. Problem 18: Leslie's backyard is a square with area 98 m². Inside it, a green square with area 8 m² contains a tree. We need to find the exact perimeter of one of the rectangular flowerbeds.
2. Since the backyard is a square, its side length is:
$$s = \sqrt{98} = 7\sqrt{2}$$
3. The green square's side length is:
$$g = \sqrt{8} = 2\sqrt{2}$$
4. The flowerbeds are rectangular sections formed by subtracting the green square from the backyard. Assuming the flowerbeds are formed by the leftover area, the length and width of a flowerbed can be found by subtracting the green square's side from the backyard's side:
$$l = s - g = 7\sqrt{2} - 2\sqrt{2} = 5\sqrt{2}$$
5. Since the flowerbeds are rectangular and the problem implies they are squares or rectangles formed by this difference, the perimeter of one flowerbed is:
$$P = 2(l + g) = 2(5\sqrt{2} + 2\sqrt{2}) = 2(7\sqrt{2}) = 14\sqrt{2}$$
Final answers:
- Distance ant travels: $7\sqrt{5}$
- Perimeter of one flowerbed: $14\sqrt{2}$
Ant Distance 7C104E
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