### Home > A2C > Chapter 12 > Lesson 12.1.1 > Problem 12-19

12-19.

Find the sum of 1 + 6 + 11 + 16 + 21 + … if the series has 10 terms. Homework Help ✎

Find the next 5 terms in the series, and then use the rectangle method to find the sum.

12-19.

Find the sum of 1 + 6 + 11 + 16 + 21 + … if the series has 10 terms. Homework Help ✎

Find the next 5 terms in the series, and then use the rectangle method to find the sum.