Diagram below shows two sectors. ABCD is a quadrant and BED is an arc of a circle with centre C.
Calculate the area of the shaded region, in cm2.
Diagram below shows a square KLMN. KPN is a semicircle with centre O.
Calculate the perimeter, in cm, of the shaded region.
Perimeter of the shaded region
= KL + LM + MN + NP + Arc length PK
= 14 + 14 +14 + 9.90 + 11= 62.90 cm
In the diagram below, CD is an arc of a circle with centre O.
Determine the area of the shaded region.