Question

4. Solve for x, and explain which theorem or postulate that helps you find the answer.

Answer 1

Answer:

x = 4°         Alternate Exterior Angles

Step-by-step explanation:

$\begin{array}{cc}Statement&Reason\\21x + 6= 90&Alternate -Exterior -Angles\\\end{array}\right]$

Solve for x:

21x + 6° = 90°

21x = 84°

x = 84°/21

x = 4°

$\begin{array}{ccc}Statement&Reason\\21x + 6= 90&Alternate -Exterior -Angles\\x = 4&Algebra\end{array}\right]$

-Chetan K