Question
Jane made a door frame for the house but does not have a tool to measure the angles. How can she check that the corner is 90 degrees?
Answers
GPT-4o mini
Jane can use a simple method known as the 3-4-5 triangle method to check if the corner is 90 degrees. Here’s how she can do it:
1. **Measure 3 units from the corner along one side.** For example, if she measures along one side of the corner, she can mark the point at 3 units.
2. **Measure 4 units from the corner along the other side.** She should do this at the corner perpendicular to the first measurement and mark the point at 4 units.
3. **Measure the distance between the two marked points.** The distance between the two marks should be exactly 5 units.
If the distance is 5 units, then the angle at the corner is a perfect 90 degrees. If it's not 5 units, then the angle is not a right angle. This method works because of the Pythagorean theorem, which applies to right triangles.
1. **Measure 3 units from the corner along one side.** For example, if she measures along one side of the corner, she can mark the point at 3 units.
2. **Measure 4 units from the corner along the other side.** She should do this at the corner perpendicular to the first measurement and mark the point at 4 units.
3. **Measure the distance between the two marked points.** The distance between the two marks should be exactly 5 units.
If the distance is 5 units, then the angle at the corner is a perfect 90 degrees. If it's not 5 units, then the angle is not a right angle. This method works because of the Pythagorean theorem, which applies to right triangles.