Math Problem Statement

a kite flying a height of 70m is attached to a string inclined at 44° to the horizontal.What is the length of the string?

Solution

To find the length of the string that is attached to the kite, we use trigonometry. Here's how we approach the problem:

Given:

  • Height of the kite (hh) = 70 meters
  • Angle of inclination (θ\theta) = 44°

Problem:

We need to find the length of the string (LL), which is the hypotenuse of the right triangle formed by the kite, the ground, and the point where the string is attached.

Solution:

The sine function relates the angle of inclination, the height of the kite (opposite side), and the length of the string (hypotenuse):

sin(θ)=oppositehypotenuse=hL\sin(\theta) = \frac{\text{opposite}}{\text{hypotenuse}} = \frac{h}{L}

Rearranging to solve for LL:

L=hsin(θ)L = \frac{h}{\sin(\theta)}

Substitute the given values:

L=70sin(44)L = \frac{70}{\sin(44^\circ)}

Now calculate the sine of 44°:

sin(44)0.6947\sin(44^\circ) \approx 0.6947

So,

L700.6947100.8 metersL \approx \frac{70}{0.6947} \approx 100.8 \text{ meters}

Answer:

The length of the string is approximately 100.8 meters.

Would you like more details or have any questions about this solution?


Here are five related questions:

  1. What would the length of the string be if the angle of inclination was 30°?
  2. How would the length of the string change if the kite was at a height of 50 meters instead?
  3. What if the kite's string was inclined at 60°? How would that affect the string length?
  4. Can we determine the horizontal distance from the kite's point directly below it to the string's attachment point?
  5. How would you calculate the angle of inclination if the string's length and height are known?

Tip: Always double-check your trigonometric functions and calculations to ensure accuracy when solving problems involving angles and sides.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Trigonometry
Right Triangle

Formulas

Sine function in trigonometry

Theorems

-

Suitable Grade Level

Grades 9-12