1. ℎ ℎℎ ℎ =
2. ℎ:−
ℎ ℎ
3. ℎ = 90
4. ℎ
5. ℎ ℎ 180
ℎ ℎ .
Radius
Tangent
90
o
A
B
C
=
∠ +∠ =
∠ =∠
∠ =∠
∠ =∠ =
∠
O
