Maths / Triangles / Pythagoras Theorem

QUESTION
 

In fig. length of AE is ________________

OPTIONS
A. 

9cm

B. 

10cm

C. 

large 5sqrt5

D. 

large sqrt5

Right Option : C

EXPLANATION
Explain TypeExplanation Content
Text

large AC^2=AB^2+BC^2

large AC^2=64+36

AC = 10cm

large CE^2=CD^2+DE^2

large CE^2=9+16

CE = 5cm

large AE^2=CA^2+CE^2

large AE^2=25+100

large AE=sqrt125=5sqrt5

 

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