Question
A triangle is labeled △LMN, and the angles can be represented by the following expressions: ∠L=4x+10, ∠M=2x, and ∠N=44°. Use the angle measures to list the side lengths in increasing order.(1 point)ResponsesLN<LM<MNupper L upper N is less than upper L upper M is less than upper M upper NMN>NL>LMupper M upper N is greater than upper N upper L is greater than upper L upper MML>NL>MNupper M upper L is greater than upper N upper L is greater than upper M upper NLM<MN<NL
Answers
GPT-4o mini
To solve for the angles of triangle \( \triangle LMN \) using the given expressions, we first note that the sum of the angles in a triangle is always \( 180^\circ \). Therefore, we set up the equation:
\[
∠L + ∠M + ∠N = 180^\circ
\]
Substituting the expressions for the angles, we have:
\[
(4x + 10) + 2x + 44° = 180°
\]
Combining the terms gives:
\[
6x + 54° = 180°
\]
Now, we isolate \( x \):
\[
6x = 180° - 54°
\]
\[
6x = 126°
\]
\[
x = 21°
\]
Now that we have the value for \( x \), we can find the measures of the angles:
\[
∠L = 4x + 10 = 4(21) + 10 = 84 + 10 = 94°
\]
\[
∠M = 2x = 2(21) = 42°
\]
\[
∠N = 44°
\]
Now we have the measures of the angles:
- \( ∠L = 94° \)
- \( ∠M = 42° \)
- \( ∠N = 44° \)
To list the sides in increasing order, we use the fact that the larger the angle, the longer the opposite side. Therefore, we have:
- \( ∠M = 42° \) corresponds to side \( LN \)
- \( ∠N = 44° \) corresponds to side \( LM \)
- \( ∠L = 94° \) corresponds to side \( MN \)
This gives us the following order of the sides based on the angle measures:
\[
LN < LM < MN
\]
Thus, the answer is:
**LN < LM < MN**.
\[
∠L + ∠M + ∠N = 180^\circ
\]
Substituting the expressions for the angles, we have:
\[
(4x + 10) + 2x + 44° = 180°
\]
Combining the terms gives:
\[
6x + 54° = 180°
\]
Now, we isolate \( x \):
\[
6x = 180° - 54°
\]
\[
6x = 126°
\]
\[
x = 21°
\]
Now that we have the value for \( x \), we can find the measures of the angles:
\[
∠L = 4x + 10 = 4(21) + 10 = 84 + 10 = 94°
\]
\[
∠M = 2x = 2(21) = 42°
\]
\[
∠N = 44°
\]
Now we have the measures of the angles:
- \( ∠L = 94° \)
- \( ∠M = 42° \)
- \( ∠N = 44° \)
To list the sides in increasing order, we use the fact that the larger the angle, the longer the opposite side. Therefore, we have:
- \( ∠M = 42° \) corresponds to side \( LN \)
- \( ∠N = 44° \) corresponds to side \( LM \)
- \( ∠L = 94° \) corresponds to side \( MN \)
This gives us the following order of the sides based on the angle measures:
\[
LN < LM < MN
\]
Thus, the answer is:
**LN < LM < MN**.