Question

Find Ac And CD in the figure ​

Answer 1

In ∆ ABC

by phythagoras theorem

AC^2= AB^2 + BC^2

= (15)^2 + (20)^2

= 225 + 400

AC^2 = 625

AC= 25

In ∆ ADC

by phythagoras theorem

AC^2 = DC^2 + AD^2

(25)^2 = DC^2 + (24)^2

625 = DC^2 + 576

DC^2 = 49

DC=7

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