Question

Find the measure of AB

A. 20
B. 21
C. 22
D. 14

Answer 1

`CB.CA=CD .CK`

`9(9+2x+5)=10(10+2x+1)`

`9(2x+14)=10(2x+11)`

`18x+126=20x+110`

`126-110=20x-18x`

`16=2x->x=8`

`AB=2(18)+5`

`=21`

So, your answer is B) 21

hope it helps...