Answer:
d
Step-by-step explanation:
its d because square has equal sides, so the midpoints would also be all equal sides, which is the definition of a square
Use PEMDAS
Parentheses
Exponents
Multiply
Divide
Add
Subtract
Answer:
84+n=342
Step-by-step explanation:
you would subtract 84 from 342 to find the width since it is perimeter.
Answer:
The measure of angle C is 
The draw in the attached figure
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
In the right triangle ABC
The sine of angle C is equal to divide the opposite side to angle C by the hypotenuse

substitute the values


What do you mean? I think you need to add a graph with the angles for people to be able to answer that question (you can take a screenshot and then use the paperclip button when you are re-writing the question). Hope this helped.