in the given figure find the length AC
explain it
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Answer:
21
Step-by-step explanation:
consider triangle ABD
given :- BD=8cm
BA=10cm
using Pythagoras thereom
AD^2=AB^2-BD^2
AD^2= 10^2-8^2
AD^2=100-64
AD^2=36
AD=√36
AD=6cm
consider triangle BDC
given :- BC=17cm
BD= 8cmusing Pythagoras thereom
DC^2=BC^2-BD^2
DC^2=17^2-8^2
DC^2=289 - 64
DC^2=225
DC=√225
DC=15cm
therefore AC = AD+DC
=6+15
= 21
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