Need help with trigo

[plush summit]

Hello

I need to find all the measures

I found the measure of CB

But idk how to find AC and AD

[round holly]

You're probably supposed to assume that ACB is a right angle. Otherwise it wouldn't be possible.

[plush summit]

Wdym?

[round holly]

If you assume ACB to be a right angle, you can calculate DCB and subtract that from 90°. If not, you can't determine AC and AD because there isn't enough information.

For example, stretching AD would not affect the parameters known to you.

[night plaza]

if angle ACB is a right angle then you can use triangle similarity

[remote belfry]

!showwork

[stoic bane]

Show your work, and if possible, explain where you are stuck.