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September 30, 2014

September 30, 2014

Posted by **Thomas** on Sunday, January 12, 2014 at 4:35pm.

a. 5 cm

b. 10 cm

c. 15 cm

d. 20 cm

e. 25 cm

please answer and explain

- math -
**Steve**, Sunday, January 12, 2014 at 4:47pmAC*AD = 80, so AC = 20

AD=CE=4

CE*BC/2 = 30, so BC=15

AB+BC=20, so AB=5

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