Asection of roller coaster track forms of parallelogram a b c and d if a b and c equals 72 degrees what is d a b

Question 3(multiple choice worth 1 points) use the arc length formula and the given information to find r. s = 16 cm, θ = 48°; r = ? sixty divided by pi cm thirty divided by pi cm one third cm one hundred twenty divided by pi cm

Hundred and tens tables to make 430 in five different ways

How do i simply this radical expression?