Can you help me with these questions? Picture shows the questions but, I'll type them as well.
1a : find the length of AK and BK
1b : if AC= 7, then how long is BC?
2a : find the measure of angle AKB?
2b : what about angle ADB?
2c : what's the measure of angle ACB?
3a : find the arc length of arc AB?
3b : Find the area of sector AB?

Need It Explained Out. Please.

Question

Can you help me with these questions? Picture shows the questions but, I'll type them as well. 
1a : find the length of AK and BK
1b : if AC= 7, then how long is BC?
2a : find the measure of angle AKB?
2b : what about angle ADB?
2c : what's the measure of angle ACB?
3a : find the arc length of arc AB?
3b : Find the area of sector AB?

Need It Explained Out.  Please.

anonymous · Answer

attachment

anonymous · Answer

For 3a I got 100 degrees 
3b 250 degrees radians or 4.361111 in degrees
2a would be 100 degrees since the arc is 100 right?