Nine circular designs are made in a show$-$ piece as shown in the diagram. If the radius of each circle is $21\, cm ,$ find the area of the region without design. (in $cm^2$)
Nine circular designs are made in a show$-$ piece as shown in the diagram. If the radius of each circle is $21\, cm ,$ find the area of the region without design. (in $cm^2$)
- A
$3402$
- B
$3520$
- C
$3120$
- D
$3024$
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As shown in the diagram, $\triangle ABC$ is an equilateral triangle in which $BC =70 \,cm$ and $P$ and $R$ are midpoints of $\overline{ AB }$ and $\overline{ AC }$ respectively. $\widehat{ PQR }$ is an arc of $\odot( A , AP ) .$ Find the area of the shaded region. $(\sqrt{3}=1.73)$ (in $cm^2$)
As shown in the diagram, $\triangle ABC$ is an equilateral triangle in which $BC =70 \,cm$ and $P$ and $R$ are midpoints of $\overline{ AB }$ and $\overline{ AC }$ respectively. $\widehat{ PQR }$ is an arc of $\odot( A , AP ) .$ Find the area of the shaded region. $(\sqrt{3}=1.73)$ (in $cm^2$)
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