If right triangle lmn, l and m are complementary angles and sin (l) is 19/20 what is cos (m)

Value of cos(M) is

Step-by-step explanation:

Since we have given that

LMN is a right angled triangle where L and M are complementary angles ,

And,

so, we will find base now by using "Pythagorus theorem":

As we know that side opposite to mentioned theta is considered as perpendicular as shown in the figure ,

For M as

NL will be its perpendicular and MN will be its base and to find the cos(M) we use Base and Hypotenuse.

So, now we will find cos(M) i.e.

Hence,

answer: c is correct, a regular pentagon

sine

step-by-step explanation: