Juan is making the shape of a rhombus. the first three angles are 80 degrees 80 degrees and 100 degrees what is the measure of the fourth angle?

A. 60
B. 100<My Answer
C. 180
D. 240

correct

im back um nevermind

To find the measure of the fourth angle of a rhombus, we can use the fact that the opposite angles of a rhombus are congruent.

Given that the first three angles of the rhombus are 80 degrees, 80 degrees, and 100 degrees, we can conclude that the opposite angle of the first 80 degrees angle is also 80 degrees.

Therefore, the measure of the fourth angle is also 80 degrees.

So, the correct answer is not among the options provided.

To find the measure of the fourth angle of a rhombus, we need to understand some properties of a rhombus.

A rhombus is a quadrilateral with all sides equal in length. It also has opposite angles equal in measure.

In this case, we are given the measures of the first three angles as 80 degrees, 80 degrees, and 100 degrees.

Since opposite angles in a rhombus are equal, the first and third angles are opposite angles, and they have the same measure of 80 degrees.

Now, we can subtract the sum of the first three angles (80 + 80 + 100 = 260 degrees) from the total sum of angles in a quadrilateral, which is 360 degrees.

360 degrees - 260 degrees = 100 degrees.

Therefore, the measure of the fourth angle of the rhombus is 100 degrees.

So, the correct answer is B. 100.