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antiseptic1488 [7]
3 years ago
13

∆ABC is similar to ∆PQR. AB¯¯¯¯¯ corresponds to PQ¯¯¯¯¯, and BC¯¯¯¯¯ corresponds to QR¯¯¯¯¯. If the length of AB¯¯¯¯¯ is 9 units

, the length of BC¯¯¯¯¯ is 12 units, the length of CA¯¯¯¯¯ is 6 units, and the length of PQ¯¯¯¯¯ is 3 units, then the length of QR¯¯¯¯¯ is ______units and the length of RP¯¯¯¯¯ is ________units.
Mathematics
2 answers:
wel3 years ago
8 0
The first blank is propyl 4 and the second is 2 (this is what I can tell if AB was 9 then PQ 3, so practically dividing by 3)
azamat3 years ago
8 0

See the attached picture.

Since ABC is similar to PQR, the corresponding sides' ratio are same.

To find QR, we use the proportion set below:

\frac{9}{3} =\frac{12}{QR}

Cross multiplying and then solving gives us:

9QR=3*12\\9QR=36\\QR=\frac{36}{9} \\QR=4


To find RP, we use the proportion set below:

\frac{9}{3} =\frac{6}{RP}

Cross multiplying and then solving gives us:

9RP=3*6\\9RP=18\\RP=\frac{18}{9} \\RP=2


ANSWER:

QR is 4 units

RP is 2 units


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