Question

when ABC l(AC)=12cm,l(BC)=7.5 cm then find l( AB)​

Answer 1

I think 4.5.......

Step-by-step explanation:

not sure

Answer 2

By pythegorus theorem

AC^2=AB^2+BC^2(H^2=P^2+B^2

12^2 = AB^2+7.5^2

144=AB^2+56.25

144-56.25=AB^2

87.75=AB^2

√87.75=AB or 9.36=AB

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