Anna is having a party she need 15 invitations the invitation come in packages of 7 how many packages of invitation does Anna ne
1 answer:
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Answer:
12.686cm
Step-by-step explanation:
By using pythagoras, we can find CB.
We know that
Therefore,
(it has to be positive since it is distance)
now we look at triangle BCD and use SOH CAH TOA.