1. Show that the bisectors of angles of a parallelogram form a rectangle. 2. If a triangle and a parallelogram lie on the same base and between the same parallels, then prove that the area of the triangle is equal to half of the area of parallelogram.

3. iron rods a, b, c, d, e and fare making a design in a bridge shown in the figure. If a parallel to b, c parallel to d, e parallel to f, find the marked angles between

1) b and c

ii) d and e

i) d and f

iv) c and f

question no 3 answer option is in pic

The cross-sectional areas of a right triangular prism and a right cylinder are congruent. the right triangular prism has a height of 6 units, and the right cylinder has a height of 6 units. which conclusion can be made from the given information? the volume of the triangular prism is half the volume of the cylinder. the volume of the triangular prism is twice the volume of the cylinder. the volume of the triangular prism is equal to the volume of the cylinder. the volume of the triangular prism is not equal to the volume of the cylinder.