Et = yen120 = $1.00 et+1 = yen140 = $1.00 {one year later} ijapan = 15% annually iu.s. = 10% annually calculate the future value of a $1,000 investment.

Three lines.

The division of triangles into scalene, isosceles, and equilateral can be thought of in terms of lines of symmetry. A scalene triangle is a triangle with no lines of symmetry while an isosceles triangle has at least one line of symmetry and an equilateral triangle has three lines of symmetry.