Question

The Great Pyramid in Egypt was built around 2560 B.C. Over the years, it has lost 30 feet of height off its top and is now 451 feet tall. Find the original height of the Great Pyramid.

Short answer

Original height of the Great pyramid is$481feet$.

Step-by-step solution

. Assume the height of the Great Pyramid

Let us assume original height of great pyramid is h .

From given information, we came to know that,

Original height of great pyramid = Present height of great pyramid + Lost height of great pyramid

.Solving for value of h

On substituting values of present height and lost height, we get

$\begin{array}{l}h=451+30\\ h=481\end{array}$

.Conclusion

Therefore, original height of great pyramid$=h=481$ feet.