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36.
A poor artist on the street makes funny
cartoons for children and earns his living.
Once he made a comic face b

By Gabriella

36.
A poor artist on the street makes funny
cartoons for children and earns his living.
Once he made a comic face by drawing a
circle within a circle, the radius of the bigger
circle opening 30 cm and that of smaller
being 15 cm as shown in the figure. What
the area of the cap given in the figure? The
base of the cap being the diameter of the
bigger circle?
(4)
Cap​

About the author
Gabriella

Like addition, subtraction, etc., we define a new operation . For example, if we write 4 5 then its value will be 4⇥2+5 = 13, if w

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The Buddh
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Kalpas

2 thoughts on “36.<br />A poor artist on the street makes funny<br />cartoons for children and earns his living.<br />Once he made a comic face b”

  1. Answer:

    Radius of bigger triangle is with centre O=30 cm

    Radius from O’=20cm

    difference of their radii =distance between their centres O andO’ =10cm

    AB is a tangent if smaller circle so,/_OCA=90°=/_OCB

    In triangle ica

    AO²=AC²+CO²

    30²=AC²+10²

    900=AC²+100

    AC=20√2

    AC=CB

    AB=AC+CB

    AB=AC+CB

    AB=2AC

    AB=2*20√2

    AB=40√2cm

    CD=30-10

    =20cm

    Area of cap=AR of adb

    1/2×AB×CD

    1/2×40√2×20=400√2cm²

    400×1.414

    =565.6cmRadius of bigger triangle is with centre O=30 cm

    Step-by-step explantion

    mark me brain list plese

    Reply

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