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Triangle proportionality theorem

Triangle proportionality theorem-example-1

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In triangle SNT, given LD || AE || NT and segment measures as shown, the missing values can be calculated using the concept of similar triangles. The final values are LD = 45 cm, SL = 60 cm, ET = 337.5 cm, NT = 36 cm, and SE = 60 cm.

In triangle SNT, we have LD || AE || NT and all the given segment measures are equal to 60 cm. SD = 48 cm, LA = 8 cm, AN = 16 cm, and AE = 45 cm. To find the missing values, we can use the concept of similar triangles. Since LD || AE, triangle SLD is similar to triangle SAE. Therefore, we can use the ratios of corresponding sides to find the missing lengths. Let's solve for the missing values step by step:

Using the ratio of corresponding sides in similar triangles SLD and SAE, we get: LD/SL = AE/SE. Substituting the known values gives LD/60 = 45/60, which gives LD = 45 cm.

Using the ratio of corresponding sides in similar triangles SLT and SAT, we get: SL/LD = LA/AE. Substituting the known values gives 60/LD = 8/45, which gives LD = 337.5 cm.

Using the ratio of corresponding sides in similar triangles AET and SNT, we get: AE/ET = NT/ST. Substituting the known values gives 45/ET = NT/60, which gives NT = 36 cm.

Therefore, the final values are: LD = 45 cm, SL = 60 cm, ET = 337.5 cm, NT = 36 cm, and SE = 60 cm. The missing values were calculated as LD = 45 cm, ET = 337.5 cm, and NT = 36 cm using the ratios of corresponding sides in similar triangles.

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