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Question
Mathematics
Find the radius of the circle escribed to the triangle ABC (Shown in the figure below) on the side BC if angle NAB =30° ; angle BAC =30° ; AB = AC =5.
Q. Find the radius of the circle escribed to the triangle ABC (Shown in the figure below) on the side BC if
∠
N
A
B
=
3
0
∘
;
∠
B
A
C
=
3
0
∘
;
A
B
=
A
C
=
5
.
40
88
Trigonometric Functions
Report Error
A
2
2
(
10
2
+
5
3
−
5
)
(
2
−
3
)
B
2
2
(
10
2
+
5
3
−
5
)
(
2
−
3
)
C
2
2
(
10
2
+
5
3
−
5
)
(
2
+
3
)
D
2
3
(
10
2
+
5
2
+
1
)
(
3
−
1
)
Solution:
Correct answer is (a)
2
2
(
10
2
+
5
3
−
5
)
(
2
−
3
)
