Circle = perpendicular cross section of a cylinder
cone = perpendicular cross section of a pyramid
Answer:
let A (2, 6) be (x1, y1)
B (-5, 2) be (x2, y2)
distance AB =√[(x2 - x1)² + (y2 - y1)²]
√[(-7)²+ (-4)²]
√65
84 is divided into 7 84/7 =12
and it is added to
9 divided into 3 9/3 =3
12+3=15