Question

Jaya starts driving north for 9 miles, then takes a right turn, and then he drives east for another 40 miles. At the end of driving, what is the distance of a straight line from the starting point?

Answers

GPT-4o mini
To find the straight-line distance from the starting point to the endpoint after Jaya's drive, we can visualize his path as forming a right triangle.

1. **Northward Distance**: Jaya drives north for 9 miles.
2. **Eastward Distance**: After turning right, he drives east for 40 miles.

Now, we can represent this situation as a right triangle where:
- The northward leg of the triangle is 9 miles,
- The eastward leg of the triangle is 40 miles.

We can use the Pythagorean theorem to find the hypotenuse (the straight-line distance from the starting point):

\[
c = \sqrt{a^2 + b^2}
\]

where:
- \( a = 9 \) miles (northward distance),
- \( b = 40 \) miles (eastward distance),
- \( c \) is the distance from the start to the endpoint.

Substituting the values into the formula:

\[
c = \sqrt{9^2 + 40^2}
\]
\[
c = \sqrt{81 + 1600}
\]
\[
c = \sqrt{1681}
\]
\[
c = 41
\]

Therefore, the straight-line distance from the starting point to the endpoint is **41 miles**.
u suree?>
GPT-4o mini
Yes, I am sure. Let's summarize the calculation again clearly:

1. Jaya drives north for 9 miles and east for 40 miles.
2. We can model this as a right triangle, where:
- One leg (northward) is 9 miles,
- The other leg (eastward) is 40 miles.

Using the Pythagorean theorem to find the hypotenuse \(c\):

\[
c = \sqrt{a^2 + b^2}
\]
where \(a = 9\) miles and \(b = 40\) miles. Substituting these values in:

\[
c = \sqrt{9^2 + 40^2} = \sqrt{81 + 1600} = \sqrt{1681} = 41 \text{ miles.}
\]

So the straight-line distance from the starting point to the endpoint is indeed **41 miles**. If you have any further questions or would like clarification on any steps, feel free to ask!
how did you make that 1681 into 41?
GPT-4o mini
To simplify \( \sqrt{1681} \) into \( 41 \), we need to find the square root of 1681.

Here's how it works:

1. **Finding the square root**: We need to determine what number, when multiplied by itself (squared), equals 1681.

2. **Calculating**:
- To find \( \sqrt{1681} \), you can use a calculator, but if we do it manually, we can factor or test perfect squares.

3. **Testing perfect squares**:
- We check various numbers:
\[
1^2 = 1, \quad 2^2 = 4, \quad 3^2 = 9, \quad \ldots, \quad 10^2 = 100, \quad 20^2 = 400, \quad 30^2 = 900, \quad 40^2 = 1600, \quad 41^2 = 1681
\]
- When we get to \( 41 \):
\[
41 \times 41 = 1681
\]

4. **Conclusion**: Since \( 41^2 \) equals 1681, we can conclude that:
\[
\sqrt{1681} = 41
\]

Therefore, the straight-line distance from the starting point to the endpoint is indeed \( 41 \) miles. If you have any further questions or need additional clarification, feel free to ask!