Question

The radius of a clock face is 8.5 centimeters. What is the area of the clock face?



907.46 cm 2
56.72 cm 2
226.87 cm 2
53.38 cm 2

Answer 1

${\bf{\huge{\underline{\boxed{\red{\mathcal{Answer}}}}}}}$

Given:

• Radius of clock's face = 8.5cm

To find:

• Area of clock's face

Solution:

$\setlength{\unitlength}{1cm}\begin{picture}(0,0)\thicklines\qbezier(2.3,0)(2.121,2.121)(0,2.3)\qbezier(-2.3,0)(-2.121,2.121)(0,2.3)\qbezier(-2.3,0)(-2.121,-2.121)(0,-2.3)\qbezier(2.3,0)(2.121,-2.121)(-0,-2.3)\put(0,0){\line(1,0){2.3}}\put(0.5,0.3){\bf\large x\ cm}\end{picture}$

Area of circle = $\pi*r^2$

=> Area of clock's face = $3.14\times 8.5\times 8.5$

=> Area of clock's face = $3.14 \times 72.25$

=> Area of clock's face = $226.865 \approx 226.87 cm^2$

The area of clock's face is $\bf 226.87cm^2$

HOPE IT HELPS!!!