Answer:
EF=22
C=70°
B=110°
Step-by-step explanation:
Trapezoids have to have a total of 360° and there are complementary angles.
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- Answer -
20.7
- Work -
5.8 * 3 = 17.4
3 * 1.1 = 3.3
3.3 + 17.4 = 20.7
<em>10</em>
<em>5x = x20</em>
<em>x · x = 20 · 5</em>
<em>x2 = 100</em>
<em>x = 10</em>
hmmm
