The original height of the Great Pyramid of Giza was 481 feet. The side of the pyramid rose at an angle of approximately 52° 52 ° . Which of the following correctly uses the sine ratio to find the length from the bottom to the top of the pyramid to the nearest foot?(1 point) Responses 781 feet 781 feet 379 feet 379 feet 610 feet 610 feet 296 feet

1 answer

To find the length from the bottom to the top of the Great Pyramid of Giza using the sine ratio, we can use the following relationship:

\[ \sin(\theta) = \frac{\text{opposite}}{\text{hypotenuse}} \]

Where:

  • \(\theta\) is the angle of elevation (52°),
  • the opposite side is the height of the pyramid (481 feet),
  • and the hypotenuse is the length we want to find.

We can rearrange the sine ratio formula to solve for the hypotenuse:

\[ \text{hypotenuse} = \frac{\text{opposite}}{\sin(\theta)} \]

Substituting the values we know:

\[ \text{hypotenuse} = \frac{481}{\sin(52^\circ)} \]

Now we calculate \(\sin(52^\circ)\) (using a calculator):

\[ \sin(52^\circ) \approx 0.788 \]

Now we substitute this value into the equation:

\[ \text{hypotenuse} \approx \frac{481}{0.788} \approx 610.4 \]

Rounding this to the nearest foot gives us approximately 610 feet.

So the correct response is 610 feet.