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Question

Ehat is the radius of the circumcircle of a triangle whose side are 30 cm. 36 cm and 30 cm

A
19 cm
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B
16 cm
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C
17 cm
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D
18 cm
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Solution

The correct option is A 19 cm
REF.Image
Dimension of triangle = 30 cm , 36 cm, 30 cm
In ABC
By Pythagoras Theorem
AB2=AC2+BC2
AC=302182
AC=24
area of =12×24×36
=432
radius of circum centre = abc90
30×30×364×43218.75
radius 18.75

1155002_1144492_ans_155367fce35c49479bdf7938569ccb80.jpg

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