The answer is what the other guy says
Answer: V = (1/3)a2h.
Step-by-step explanation: Square Pyramid Formulas derived in terms of side length a and height h: Volume of a square pyramid
The Pythagorean theorem can be used to find the length (c) of the diagaonal given the two side lengths a and b.
c² = a² + b²
c² = (50 ft)²(4² +3²)
c = (50 ft)√(16+9) = 250 ft.
Clare travels 250 ft when she rides across the lot diagonally.