btb it fractions
is it four hundred twelve or 4.12
Find c(8) in the sequence given by c(n) = 20 – 17(n − 1)
Answer:
18°
Step-by-step explanation:
sum the parts of the ratio, 1 + 4 + 5 = 10 parts
The sum of the 3 angles in a triangle = 180° , then
180° ÷ 10 = 18° ← value of 1 part of the ratio
Since 1 is the smallest part of the ratio it represents the smallest angle, thus
smallest angle = 18°