Question

in trangle ABC , ab=10cm ,bc=17cm and AD=8cm. find Ac
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Answer 1

Answer:

AC= 13.6 cm.

Step-by-step explanation:

angle d is right angled

hence, by pythagoras theorem

AB²=AD²+BD²

10²=8²+BD²

100=64+BD²

100-64=BD²

36=BD²

∴BD=6

∵BC=BD+CD

∴CD=BC-BD

CD=17-6=11

∴by Pythagoras theorem,

AC²=AD²+CD²

AC²=8²+ 11²

AC²= 64+121

AC²=185

∴AC= 13.6 cm.

Answer 2

Answer:

21 cm

Step-by-step explanation:

21 cm

how

find by own