Question

Please solve
1. Prove that cyclic parallelogram is rectangle.
2. Construct a triangle ABC in which BC = 7 cm, angle B = 75 degrees and AB + AC= 13cm.
3 Construct a triangle XYZ in which angle Y = 30 degrees and angle Z = 90 degrees and XY + YZ + ZX = 11 cm.
4. The paint in a certain container is sufficient to paint an area equal to 9.375 sq m.How many bricks of dimensions 22.5cm x 10cm x 7.5cm can be painted out of this container.

Answer 1

A cyclic parallelogram is a rectangle because the length and breadth of a rectangle and quadrilateral is equal to each other