A triangular side of the Transamerica Pyramid Building in San Francisco, California, is 149 feet at its base. If the distance from a base corner of the building to its peak is 859 feet, how wide is the triangle halfway to the top.

A. 298 ft
B. 74.5 ft
C. 149 ft
D. 429.5 ft​

A triangular side of the Transamerica Pyramid Building in San Francisco California is 149 feet at its base If the distance from a base corner of the building to class=