True-False Statements ______ 1. A line perpendicular to another line also bisects the line. ______ 2. An equilateral triangle is also equiangular ______ 3. The altitude of a triangle always passes through the midpoint of a side. ______ 4. In an isosceles triangle, median to the base is perpendicular to the base. ______ 5. The bisector of an angle of a triangle bisects the side opposite of a side. ______ 6. The altitude of a triangle intersects the midpoint of a side. ______ 7. The bisectors of two angles of a triangle are perpendicular to each other. ______ 8. In an equilateral triangle, the altitude is a perpendicular bisector of the base. ______ 9. In an equilateral triangle, the base angles are congruent. ______ 10. In an isosceles triangle, all three angles are acute. ______ 11. If the two diagonals of a quadrilateral are perpendicular, the quadrilateral is a parallelogram. ______ 12.A parallelogram is a rectangle. ______ 13. A square is a rectangle. ______ 14. An isosceles trapezoid has two congruent sides. ______ 15. The two diagonals of a rhombus bisects each other at right angles.