The radius of a circle is 20% more than the height of a right-angled triangle. The base of the triangle is 36 cm. If the area of triangle and circle be equal, what will be the area of a circle? |
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(a) |
72 cm |
(b) |
128 cm |
(c) |
144 cm |
(d) |
216 cm |

The radius of a circle is 20% more than the height of a right-angled triangle. The base of the triangle is 36 cm. If the area of triangle and circle be equal, what will be the area of a circle? |
|||||||

(a) |
72 cm |
(b) |
128 cm |
(c) |
144 cm |
(d) |
216 cm |

1 Answer

127 votes

Let the height of the triangle be cm.

Radius = 120% of cm.

cm.

Radius = cm.

Area =

127 votes

127