PLEASE HELP!! What is the missing reason in step 5?
Given: Circle O with diameter LN and inscribed angle
LMN
Prove: ZLMN is a right angle.
M
Statements
Reasons
1. circle O has diameter LN and 1. given
inscribed angle LMN
2.
LKN is a semicircle
2. diameter o divides
into 2 semicircles
3. circle O measures 360° 3. measure of a circle
is 360°
K
N
4.
m LKN = 180°
5. m LMN = 90°
6. LMN is a right angle
4. definition of
semicircle
5.?
6. definition of right
angle
HL theorem
O inscribed angle theorem
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