Answer:
hi, hope you are good!, hope you have the greatst holidays ever!
Step-by-step explanation:
Will its 12.75 because you add 3+9 =12 and you just put the 75 that's it
Given:
Base length of triangle = 10 units
Height of triangle =
units
Length of hypotenuse of triangle = 12 units
To find:
Exact value of Cos A
Steps:
The cosine of any angle is equal to the length of the adjacent side by the length of the hypotenuse side.
So,
Cos A = 
Cos A = 
Cos A = 0.833
Therefore, the exact value of cos A is 0.833.
Happy to help :)
If u need any help, feel free to ask