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BartSMP [9]
3 years ago
5

Identify the correct explanation for why the triangles are similar. Then find OP and MN.

Mathematics
2 answers:
STALIN [3.7K]3 years ago
6 0

Answer:

Therefore, the correct explanation is;

C. ∠L ≅ ∠L  By Reflexive Prop. ≅.

Since \overline {OP} ║ \overline {MN}, ∠LOP ≅ ∠LMN by the Corr. ∠s Post. Therefore, ΔLOP ~ ΔLMN by AA ~. OP = 4 and MN = 8

Step-by-step explanation:

The given parameters are;

\overline {LP} = 5

\overline {NP} = 10

\overline {OP} = x - 3

\overline {MN} = x + 1

A two column proof is presented as follows;

Statement    {}      Reason

∠L ≅ ∠L     {}        By Reflexive property of congruency

\overline {OP} ║ \overline {MN}     {}     Given

∠LOP ≅ ∠LMN {}  By the Corresponding angles Postulate

Therefore

ΔLOP ~ ΔLMN {}  By AA similarity Postulate

Where we have that ΔLOP and ΔLMN, we get;

\overline {OP}/\overline {MN}  = \overline {LP}/\overline {NP} = 5/10 = 1/2

∴ (x - 3)/(x + 1) = 1/2

2·(x - 3) = 1·(x + 1)

2·x - 6 = x + 1

2·x - x = 1 + 6 = 7

x = 7

\overline {OP} = (x - 3) = 7 - 3 = 4

\overline {OP} = 4

\overline {MN} = x + 1 = 7 + 1 = 8

\overline {MN} =  8

Therefore, the correct option is ∠L ≅ ∠L  By Reflexive Prop. ≅.

Since \overline {OP} ║ \overline {MN}, ∠LOP ≅ ∠LMN by the Corr. ∠s Post. Therefore, ΔLOP ~ ΔLMN by AA ~. OP = 4 and MN = 8.

KatRina [158]3 years ago
5 0

Answer:

∠L≅∠L by the Reflex Prop. of ≅.

Since OP⎯⎯⎯⎯⎯∥MN⎯⎯⎯⎯⎯⎯,∠LOP≅∠LMN by the

Corr. ∠s Post. Therefore, △LOP∼△LMN

by AA∼. OP=2 and MN=6.

Step-by-step explanation:

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