## anonymous one year ago According to the diagram, a surveyor is using a measuring instrument to calculate the height of a building. Which trigonometric ratio is equal to in the diagram?

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1. anonymous

2. mathstudent55

Read the wording in the post, and add the missing info marked with ????? below. "Which trigonometric ratio is equal to ????? in the diagram?"

3. anonymous

4. mathstudent55

5. anonymous

its directly off of the screen I copied it

6. mathstudent55

Maybe there is a symbol on the screen that can't be simply copied and pasted. Read the question in the post and compare it to the question you have on your screen. There is something missing.

7. anonymous

ahh its was c/d

8. mathstudent55

Ok.

9. mathstudent55

Do you know SOHCAHTOA?

10. anonymous

not at all

11. mathstudent55

The main three trig ratios are since, cosine, and tangent. SOHCAHTOA helps you remember what the ratios are using initials: SOH: $$\sin A = \dfrac{opp}{hyp}$$ CAH: $$\cos A = \dfrac{adj}{hyp}$$ TOA: $$\tan A = \dfrac{opp}{adj}$$

12. mathstudent55

Do those ratios look familiar?

13. anonymous

never seen em in my life