QUESTION IMAGE
Question
question
what is the inverse of the following statement.
if ( mangle1 + mangle2 = 180 ), then the angles are supplementary.
answer
if two angles are supplementary, then ( mangle1 + mangle2 = 180 )
if ( mangle1 + mangle2 = 180 ), then the angles are not supplementary.
none of the above.
if two angles are not supplementary, then ( mangle1 + mangle2
eq 180 )
if ( mangle1 + mangle2
eq 180 ), then the angles are not supplementary.
To find the inverse of a conditional statement "If \( p \), then \( q \)", we negate both the hypothesis (\( p \)) and the conclusion (\( q \)). The original statement is: "If \( m\angle1 + m\angle2 = 180 \), then the angles are supplementary." Here, \( p \) is \( m\angle1 + m\angle2 = 180 \) and \( q \) is "the angles are supplementary."
Step 1: Identify \( p \) and \( q \)
- Hypothesis (\( p \)): \( m\angle1 + m\angle2 = 180 \)
- Conclusion (\( q \)): The angles are supplementary
Step 2: Negate \( p \) and \( q \)
- Negation of \( p \) (\(
eg p \)): \( m\angle1 + m\angle2
eq 180 \)
- Negation of \( q \) (\(
eg q \)): The angles are not supplementary
Step 3: Form the inverse
The inverse of "If \( p \), then \( q \)" is "If \(
eg p \), then \(
eg q \)". So substituting the negations, we get: "If \( m\angle1 + m\angle2
eq 180 \), then the angles are not supplementary." Wait, looking at the options, let's re - evaluate. Wait, maybe I made a mistake in the options. Wait, the options given:
Wait, the original statement: \( p \): \( m\angle1 + m\angle2 = 180 \), \( q \): angles are supplementary.
Inverse is \(
eg p
ightarrow
eg q \), which is "If \( m\angle1 + m\angle2
eq180 \), then the angles are not supplementary". But looking at the options, one of the options is "If two angles are not supplementary, then \( m\angle1 + m\angle2
eq180 \)"? Wait, no, let's check the options again.
Wait, the options:
- If two angles are supplementary, then \( m\angle1 + m\angle2 = 180 \) (this is the converse)
- If \( m\angle1 + m\angle2 = 180 \), then the angles are not supplementary (this is a contradiction, not inverse)
- If two angles are not supplementary, then \( m\angle1 + m\angle2
eq180 \) (this is the contrapositive)
- If \( m\angle1 + m\angle2 = 180 \), then the angles are not supplementary (same as option 2)
- None of the above.
Wait, my initial calculation of the inverse was wrong. Wait, the inverse of "If \( p \), then \( q \)" is "If not \( p \), then not \( q \)". So \( p \) is \( m\angle1 + m\angle2 = 180 \), so not \( p \) is \( m\angle1 + m\angle2
eq180 \), and not \( q \) is angles are not supplementary. So the inverse should be "If \( m\angle1 + m\angle2
eq180 \), then the angles are not supplementary". But none of the options have this? Wait, maybe there is a typo in the options. Wait, looking at the options again, one of the options is "If two angles are not supplementary, then \( m\angle1 + m\angle2
eq180 \)" - that is the contrapositive. The converse is "If \( q \), then \( p \)". The inverse is "If not \( p \), then not \( q \)". Since none of the options match the correct inverse, the answer is "None of the above".
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None of the above.