Order of Operations = PEMDAS
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
Answer:
Step-by-step explanation:
You need the Law of Cosines for this, namely:
where x is the missing side.
and
so
x = 18.0 or just 18
Answer:
an isosceles triangle
Step-by-step explanation:
it has two equal sides so this is isosceles triangle
For #1, C. 1080, For #2, B. 7, For #10, I think its because of the reflexive property (honestly, Google it just to be safe) , And for #11, A Rhombus, Having trouble remembering why but I know its not a rectangle or square.