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natali 33 [55]
2 years ago
6

Can someone help me :(

Mathematics
1 answer:
Ivan2 years ago
7 0
The triangles are similar by AAA so make ratios and solve
\frac{21}{14}  =  \frac{x}{20} \\ x =  \frac{21 \times 20}{14}  \\ x = 30
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