A and b are perpendicular meaning that they intersect forming 90
b and c are parallel meaning that the intersection of c and a is also perpendicular
11x - 9 = 90 degrees
solve
11x - 9 = 90
add 9 to both sides
11x = 99
divide both sides by 11
x = 9
Hope this helps
Answer:
The answer is(D.) 9 cm and 10 cm
<em>For your question the answer is B.</em>
<em> Hope this helps:)</em>
2x-12=-40
Add 12 to both sides
2x=-20
Divide by 2 to both sides
x=-10
