Amanda would use 3 planks of lengths 3 feet, 5 feet, and 6 feet.
What is a triangle?
- A triangle is a three-edged polygon with three vertices. It is a fundamental shape in geometry.
- Triangle ABC denotes a triangle with vertices A, B, and C.
- In Euclidean geometry, any three non-collinear points define a unique triangle and, by extension, a unique plane.
To determine which planks Amanda should use to build the triangular-shaped kennel:
- To build a kennel for dog, we would try to make it the largest possible with what we have.
- So, we would go with the 3 longest planks: 3ft, 5ft, and 6ft.
- By looking at the length, we see that we could make something very close to a right triangle since we could use the 6ft as a hypotenuse, and have the two other sides as 3ft and 5 ft (6² is almost 3²+5², which equals 34).
- That means our corner angle would be slightly over 90 degrees.
Therefore, Amanda would use 3 planks of lengths 3 feet, 5 feet, and 6 feet.
Know more about a triangle here:
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