Question

Which of the following is not necessary for a pair of angles to be vertical angles?
A. They are nonadjacent
B. They are congruent
C. They have the same vertex
D. They are complementary

Answer 1

do you know what vertical angles are...?

Answer 2

here is a website that will explain them

http://www.mathopenref.com/anglesvertical.html

Answer 3

i think it is A not sure

Answer 4

adjacent means the angles are next to each other...

vertical angles means that they are on opposite sides of a vertex...

so they must be non adjacent.... (they can't be next to each other)

so it only leave 1 choice

Answer 5

A. 1
B. 2
C. 3
D. Cannot be determined

Answer 6

the word complementary means the angles add to 90 degrees...

the only time they can be complementary and vertical is if they measure 45 degrees.

Answer 7

if the angles in the next question are equal

x + 1 = 4x - 2

you need to solve the equation for x...

Answer 8

would it b 3

Answer 9

Mystery to solve. If x + 1 = 4x -2..................would it be 3? Solve mystery to see if it is 3.

3 + 1 = 4(3) - 2
4 =12 -2
4 = 10 Noooo it ain't 3.

Answer 10

Now too work it using algebra.
x+1=4x-2
subtract x from both sides
1 = 3x -2 add 2 to both sides.
3 =3x divide both sides by 3
1 = x
x =1 check
1 + 1= 4 -2
2 = 2 checks out. mystery solved.