an isoceles triangle abc is inscribed in a circle. if ab =ac=13 cm and bc=10 cm find r
Answers
Answered by
5
use formula ,
R=ABC/4∆
∆=√s(s-a)(s-b)(s-c)
=√18(18-13)(18-13)(18-10)
=60cm^2
abc=10 x 13 x 13=1690
now
radius =1690/4 x60
=169/24 cm
R=ABC/4∆
∆=√s(s-a)(s-b)(s-c)
=√18(18-13)(18-13)(18-10)
=60cm^2
abc=10 x 13 x 13=1690
now
radius =1690/4 x60
=169/24 cm
abhi178:
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Answered by
4
R=abc/4∆
a=10cm
b=c=13cm
∆=[s(s-a)(s-b)(s-c)]^2
s=18
∆=60
R= 10×13×13÷240
=169/24
=7.041667~~7cm
a=10cm
b=c=13cm
∆=[s(s-a)(s-b)(s-c)]^2
s=18
∆=60
R= 10×13×13÷240
=169/24
=7.041667~~7cm
Plz mark my answer as brainliest
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