If an angle it is obtuse it is between 90 and 180.
Angles in a quadrilateral add up to 360.
Therefore 3 obtuse angles must add up to AT LEAST 273 and if you then added the 90 it would get you to 363 which is too large so it cant be 90 :)
Answer:
D
Step-by-step explanation:
By definition of ratios, if you consider 16 elements out of a total of 40 elements, you are considering the 16/40 of the total.
You may simplify this ratio, since both numerator and denominator are multiple of 8:
