AliceYT
14.05.2021 •
Mathematics
What does the f represent in f/4 = 22
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Ответ:
Ответ:
8
Step-by-step explanation:
Ответ:
ED=7.5
Step-by-step explanation:
ΔABC is similar to ΔDEB (they share ∠B, and ∠C=∠D and ∠A=∠E because corresponding angles), so their sides are in ratio:
ED/AC=BD/BC
We can see that BC is twice BD (marked), so we know BD/BC=0.5
ED/AC=BD/BC
ED/15=0.5
ED=7.5