Answer:I am pretty sure it is the angels because the square can be a right and the roofs can be acute.
Step-by-step explanation:
Right angle is 90 degrees
Acute is less than 90 degrees
Obtuse is more than 90
Answer: 9.6 km
Rounding of to nearest tens- 10KM
The answer is 0.6666666666 but to simplify it you can put 0.6

where

.
By continuity of

, you have

As

in the numerator, you approach

; in the denominator, you approach

. So you have an indeterminate form

. Provided the limit indeed exists, L'Hopital's rule can be used.

Now the numerator approaches

, while the denominator approaches

, suggesting the limit above is 2. This means