Question

find the area of a triangle having two sides = 10 cm and the triangle is inscribes in a cirle of radius 10 cm

Answer 1

Solution:

r=a+b-c/2

10=10+10-c/2

10×2/20=-c

-c=1cm

c=-1cm

Answer 2

r=a+b-c/2
a=10, b=10 ,r=10
10=10+10-c/2
20=20-c
c=0
area of triangle=1/2*base*altitude
area of triangle=1/2*10*10
=50
may it will help you