In addition to the power to issue bonds, notes and other obligations as provided by § 10-56, such regional board of education may, when so authorized by a majority vote at a regional school district meeting called for such purpose, borrow sums of money and issue bonds, notes or other obligations, and pay interest thereon, to acquire land, prepare sites, purchase or erect buildings and equip buildings for school purposes, secure the services of architects and professional consultants, and operate and maintain regional schools, and for contingent or other necessary expenses connected therewith in principal amounts which shall not exceed in the aggregate five hundred thousand dollars at any time. Such sums may be borrowed for a term not to exceed ten years. Persons eligible to vote under the provisions of § 7-6 may vote on such issue. Such loans, bonds, notes or other obligations shall be general obligations of such district and the member towns. The regional board of education, or such officer or body to whom the board delegates the authority to make such determinations, shall determine the date, maturity, interest rate, form, manner of sale and other terms of such loans, bonds, notes or other obligations.