ചിത്രത്തിൽ, AB=4 സെന്റീമീറ്റർ, BC =5 സെന്റീമീറ്റർ. <B=90° cos C എന്നത്:

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In the figure, AB=4 centimetres, BC =5 centimetres. <B=90° cos C is:

A5 /√41

B5/4

C4/√41

D4/5

Answer:

Cos C $=\frac{5}{\sqrt{41}}$

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In the figure AB= BC=CD=DE=AE. <C=<D=90°. what is the measure of <C?