We can use the vertical angle theorem which states that any two opposite angles are congruent. So, you can just set the two measures equal to each other and solve for x:




So, your answer is
20°.
Answer:
that looks like it is right
-2x^2=-15-5
-2x^2=-10
x^2=-5
X≠R i am not quite sure but...hope it helps :)
Step-by-step explanation:
please type the question properly
81 because 81 is a perfect square and 27 times 3 =81