OpenStudy (anonymous):

OpenStudy (anonymous):

The picture shows the design of part of a bridge. What is the height AC of the bridge?

OpenStudy (anonymous):

half of the hypotenuse

OpenStudy (anonymous):

ratios for a 30- 60 - 90 triangle are $$1:\sqrt{3}:2$$ so the short side is half of the hypotenuse

OpenStudy (anonymous):

Thanks!