Find out the process in production of wind energy and in functioning of solar water heater
Question
In a rectangle ABCD, the diagonals intersect at O. Correct the mistakes in the following. Give reasons.
- Angle AOB=120°, Angle ABO=45°, Angle OBC=45°,
- AO=6cm, BO=4.5cm, AB=7.5cm,
- AB=8cm, BC=6cm, AC=5.5cm
- Angle OAB=Angle OAD=50°.
