Botany. 1  a tuft of silky hairs at the end of a seed. 2  the leafy crown of a tree; cluster of leaves at the end of a stem. 3  a terminal cluster of bracts, as in the pineapple.
The flexible pads are called base-isolators, whereas the structures protected by means of these devices are called base-isolated buildings. The main feature of the base isolation technology is that it introduces flexibility in the structure.
The Base Angle Theorem states that in an isosceles triangle, the angles opposite the congruent sides are congruent. Since the triangle only has three sides, the two congruent sides must be adjacent. Let them meet at vertex. Now we draw altitude to. From the Pythagorean Theorem, , and thus is congruent to, and.