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## xxloserlikemexx 3 years ago Look at the figure. What is the length of AB? 17.66 cm 19 cm 26.32 cm 29 cm

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1. xxloserlikemexx

2. xxloserlikemexx

I know that the base of the triangle on the right is 9, but I'm confused as to how to find the other side.

3. ajprincess

|dw:1338780156279:dw|

4. ajprincess

@azka.niazi hw do u knw that the hypotenuse is 10?

5. azka.niazi

yes that's a tangent. I did the same mistake in the previous one.

6. ajprincess

it has to be cotangent nt tangent. cot=adj/hyp=AP/10

7. azka.niazi

well they are the same thing actually. tan (30) = 10/AP that will give AP.

8. ajprincess

ya. bt in ur answr u gav it as cos30=AP/10 so I changed it as cot30=AP/10

9. azka.niazi

That was a blunder on my part! :) Sorry about that!

10. ajprincess

nvm. i too make this sorts of mistakes often.

11. azka.niazi

:)

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