Question: Tiendesitas is a part of an interim business district with an area of more than what?

Related documents: [0]  [DOC] Tiendesitas ("a collection of little stores") is a shopping complex located along the C-5 road corner Eulogio Rodriguez, Jr. Avenue in Ugong, Pasig. It began its operations on September 26, 2005 and was developed by Ortigas & Company Limited Partnership (OCLP). It rivals the highly successful and world-renowned Chatuchak Market of Bangkok. Constructed at a cost of P200 million, Tiendesitas is a part of Frontera Verde, an interim 18.5 hectare Ortigas Center development project. The complex offers more than 300 parking slots, and is served by jeepneys on C-5 and by buses which stop a short walk from the Tiendesitas gate. [END] 
[1]  [DOC] Ortigas Center is a financial and central business district located at the boundaries of Pasig, Mandaluyong, and Quezon City in the Philippines. With an area of more than 100 ha , it is Metro Manila's second most important business district after the Makati CBD. It is governed by Ortigas Center Association, Inc. [END]  
Answer: 100 ha
100 ha