Rectangle

The rectangle is 21 cm long and 38 cm wide.

Determine the radius of the circle circumscribing rectangle.

Correct result:

r =  22 cm

Solution:

a=21 cm b=38 cm  u=a2+b2=212+382=1885 cm≐43.4166 cm  D=u=43.4166=1885 cm≐43.4166 cm  r=D/2=43.4166/2=22 cm

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Showing 1 comment:
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Pancake
Thanks, this really helped. Ima go eat my French toast now

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