GEOMETRY / SEQUENCES - REVIEW FLASHCARDZIZ

Front

Evaluate the geometric series, if possible.

Back

5/2

Front

Find the missing term in the geometric sequence: 8, 20, 50, 125, _____.

Back

312.5

Front

If the measure of two angles of a triangle are 60 and 100 degrees, what is the measure of the third angle?

Back

20°

Front

What is the midpoint of segment GH?

Back

(2.5, 4.5)

Front

The individual numbers in a sequences are called the____________________________

Back

Term

Front

What is a geometric series?

Back

A geometric series is the sum of the terms of a geometric sequence, where each term after the first is found by multiplying the previous term by a fixed, non-zero number called the common ratio.

Front

What is the formula for the nth term of a geometric sequence?

Back

The nth term (a_n) can be found using the formula: a_n = a_1 * r^(n-1), where a_1 is the first term and r is the common ratio.

Front

What is the common ratio in a geometric sequence?

Back

The common ratio is the factor by which we multiply each term to get the next term in the sequence.

Front

How do you find the sum of the first n terms of a geometric series?

Back

The sum S_n of the first n terms can be calculated using the formula: S_n = a_1 * (1 - r^n) / (1 - r), where a_1 is the first term and r is the common ratio.

Front

What is the relationship between the angles in a triangle?

Back

The sum of the interior angles of a triangle is always 180 degrees.