Question

please give the right ans​

Answer 1

Answer:

First of all lable the sides as A,B &C

where ∆ABC is right angled at B

Now,

Take

AB = x

BC = 8

AC = 10

Then :–

cos theta = Base/Hypotenuse = BC/AC

So l, on substuting the values

AC = 8/10

x= 2/5 = 2.5

the length of side AC = 2.5 cm

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