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16 votes
16 votes
1. Solve the following for the missing va 18 V 56 21

User Vcp
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1 Answer

13 votes
13 votes

We use the thales theorem to solve this question, then it follows that:


(56)/(56+21)=(x)/(x+18)

then:


(56)/(77)=(x)/(x+18)\Rightarrow56(x+18)=77x
56x+1008=77x
1008=77x-56x
21x=1008
x=(1008)/(21)=48

Then the missing value is x=48

User Mojtaba Ghiasi
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3.2k points