The area of a square is 144 sqcm. Find the length of the diagonal.

The angle of a sector of a circle of diameter 8cm is 135°. Find the area of the sector [Take \(\pi\) = 22/7].

In the diagram above, O is the center of the circle of radius 3.5cm, ∠POQ = 60°. What is the area of the minor sector POQ?

[Take π = 22/7].

The area of a circle is 38.5cm2. Find its diameter [take \(\pi = \frac{22}{7}\)]

Find the area of a rectangle of length 4cm and whose diagonal is 8cm, (Leave your answer in surd form)