Answer:
∠ EFA
Step-by-step explanation:
complementary angles sum to 90°
∠ EFA and ∠ EFA form a right angle ad sum to 90°
Answer:
C
Step-by-step explanation:
They are both acute angles so the measurement cannot be above 90 degrees (right angle).
m<ADC is clearly smaller than m<AEC therefore m<AEC must be bigger than 28 degrees. C is the only option that fits
The length of somebody's arm depends on the person. Not everyone has the same length of arm.
8.3x10^-1, I get 0.8300000000000001 when I use parentheses, the way you have it written, I get NaN