Lines
ab
and
cd
(if present in the picture) are straight lines. fill in the blank to find x.
chapter reference
b

statement reason
1. m∠aoc +m∠coe +m∠ = m∠
2. m∠aob =
3. m∠eob =
4. x + +90°=180°
substitution
5. x = algebra

x= 45

Step-by-step explanation:

angle EOB = 90 degrees so angle EOA must also be 90 degrees. Divide 90 by 2 = 45. You can figure out the rest from now on.

1/3 + 1/3 ≠ 2/6 because 1/3 alone = 2/6  

step by step explanation:

1/3 + 1/3 = 2/3       2/3=4/6