Given the area of the shaded region is \(40.\,67\text{ cm}^2\).
Find the radius, \(r\), in \(\text{cm}\).
Use \(\pi=3.142\).
\(6 \text{ cm}\)
In the diagram, \(PQRS\) is a square, \(PT\) is an arc of a circle with centre \(Q\) and \(QT\) is an arc of a circle with centre \(P\).
Calculate the area, in \(\text{ cm}^2\), of the shaded region.
\(17.90 \text{ cm}^2\)
The diagram shows a sector \(OAB\) of a circle with centre \(O\) and a radius of \(6 \text{ cm}\).
Given that \(OA=OB=AB,\) find the area, in \(\text{cm}^2\), of the shaded region.
\(4. \, 2629 \text{ cm}^2\)
The diagram shows a semicircle \(PTS\) with centre \(O\) and a radius of \(16 \text{ cm}\).
\(QST\) is a sector of a circle with centre \(S\) and \(R\) is the midpoint of \(OP\).
Using \(\pi=3.\,142\), calculate \(\angle{TOR},\) in radians.
\(3.\,0473 \text{ rad}\)
Using \(\pi=3.\,142\), calculate the length, in \(\text{cm}\), of the arc \(TQ\).
\(15.\,51 \text{ cm}\)
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