2.81+3.72=6.53 Which You Could Estimate To 6.50 or 6.5
Answer:
Ren was 27.5 meters away from her family.
Step-by-step explanation:
Ren Qian was at a height of 10 meters to the ground. Let the distance from her vertical point on the ground to her family (i.e the ground distance) be represented by x.
But the angle of depression is measured with respect to the horizontal plane, so;
the vertical angle =
- 20°
= 
Applying the appropriate trigonometric function, we have;
Tan θ = 
Tan
= 
⇒ x = 10 x Tan 
= 10 x 2.7475
= 27.475
x = 27.5 meters
Ren was 27.5 meters away from her family.
Mode is the number that most occurs in the data. From the given data set, there is no repeated number. Thus, there is no mode for the data set.