Madhuri travels 14 km westward, then turns left and travels 6 km, and then further turns left and travels 26 km. How far is Madhuri now from the starting point?

A. 12 km
B. 10 km
C. 15 km
D. 20 km



Answer :

Sure, let's solve this step by step:

1. Initial Position:
- Madhuri starts at the origin, which we can denote as (0,0).

2. First Movement:
- Madhuri travels 14 km west. Moving west decreases the x-coordinate.
- Therefore, her new position is (0 - 14, 0) = (-14, 0).

3. Second Movement:
- Madhuri then turns left and travels 6 km south. Turning left from west means she will now be heading south.
- Moving south decreases the y-coordinate.
- Therefore, her new position is (-14, 0 - 6) = (-14, -6).

4. Third Movement:
- Madhuri turns left again and travels 26 km east. Turning left from south means she will now be heading east.
- Moving east increases the x-coordinate.
- Therefore, her new position is (-14 + 26, -6) = (12, -6).

5. Calculating Distance from the Starting Point:
- The final step is to find the distance between her new position (12, -6) and the starting point (0, 0).
- We use the distance formula for this, which is: \
[tex]\[ \text{Distance} = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} \][/tex]
- Plugging in the coordinates (12, -6) and (0, 0), we get:
[tex]\[ \text{Distance} = \sqrt{(12 - 0)^2 + (-6 - 0)^2} = \sqrt{12^2 + (-6)^2} = \sqrt{144 + 36} = \sqrt{180} \approx 13.416 \][/tex]

Hence, Madhuri is approximately 13.416 kilometers away from the starting point.