Find the measure of the indicated angle (geometry)

The little lines through the two sides of the triangle mean the sides are equal length.

Because the sides are equal, the two bottom angles are also the same.

Since angle B is given as 46 degrees, angle C is also 46 degrees.

The three inside angles of a triangle need to equal 180 degrees.

Angle A = 180 - 46 - 46 = 88 degrees.

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.