2 m
19 Two paths cross each other at right angles in a
rectangular park as shown here. Find the area of the
path and the area of the park that is not covered by
250 m
the paths.
20 Find the area of the shaded regions in the given figures.
-500 m
Answers
Answered by
1
Explanation:
AC is the diameter of the circle.
In the right angled triangle ADC, we have
AC
2
=AD
2
+DC
2
(Pythagoras theorem)
AC
2
=5
2
+12
2
AC
2
=25+144
AC
2
=169
AC=13 cm
Radius of the circle =
2
AC
=
2
13
=6.5 cm
Area of the shaded part = Area of the circle − Area of the rectangle
= πr
2
−lb
= 3.14×6.5
2
−(5×12)
=132.665−60
=72.665 cm
hope it's help you
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