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Nookie1986 [14]
3 years ago
9

What is the measure of DE? 16 12 20 10

Mathematics
1 answer:
AnnyKZ [126]3 years ago
8 0
 set up a ratio to find the length:

15/12 = DE/16

cross multiply the 15 & 16:
15 * 16 = 240

divide that by 12 to get DE

240 / 12 = 20

DE = 20
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