Question
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Rashaad leans a 22-foot ladder against a wall so that it forms an angle of \( 65^{\circ} \) with the ground. How high up the wall does the ladder reach? Round your answer to the nearest hundredth of a foot if necessary.

Ask by Hall Reese. in the United States
Jan 27,2025

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Answer

The ladder reaches approximately 18.19 feet up the wall.

Solution

To find the height up the wall that the ladder reaches, we can use trigonometry. Given: - The length of the ladder (hypotenuse) is 22 feet. - The angle formed with the ground is \( 65^{\circ} \). We can use the sine function to find the height up the wall. The sine of an angle in a right triangle is defined as the ratio of the length of the side opposite the angle to the length of the hypotenuse. Let's denote the height up the wall as \( h \). Using the sine function: \[ \sin(65^{\circ}) = \frac{h}{22} \] To find the height \( h \), we can rearrange the equation: \[ h = 22 \times \sin(65^{\circ}) \] Now, we can calculate the height using a calculator. The height up the wall that the ladder reaches is approximately 18.19 feet. Rounding to the nearest hundredth of a foot, the height is 18.19 feet.

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To find out how high the ladder reaches up the wall, you can use some trigonometry! Specifically, you'll want to use the sine function, which relates the angle to the opposite side (the height on the wall) and the hypotenuse (the length of the ladder). The formula is: \[ \text{Height} = \text{Ladder length} \times \sin(\text{angle}) \] Here, the ladder length is 22 feet and the angle is \( 65^{\circ} \): \[ \text{Height} = 22 \times \sin(65^{\circ}) \] Calculating the sine of \( 65^{\circ} \) gives approximately 0.9063. Now plug in the values: \[ \text{Height} \approx 22 \times 0.9063 \approx 19.93 \text{ feet} \] So the ladder reaches approximately 19.93 feet up the wall! For a visual twist, imagine your ladder is a superhero, scaling the wall to save a kitten! Just be sure to check the angle next time you put it to heroic use!

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