Which has a measure that is equal to the sum of the measures of the interior angles of a triangle?

a straight line

Step-by-step explanation:

The complete question is

Which has a measure that is equal to the sum of the measures of the interior angles of a triangle?

A) a straight line

B) a circle

C) a right angle

D) an obtuse angle

we know that

The sum of the interior angles in any triangle must be equal to 180 degrees

so

Verify all the options

Option A) a straight line

The measure of the angle on a straight line is equal to 180 degrees.

Option B) a circle

The central angle of a circle is equal to 360 degrees

Option C) a right angle

The measure of a right angle is 90 degrees

Option D) an obtuse angle

An obtuse angle is greater than 90 degrees but less than 180 degrees

therefore

The answer is a straight line

A straight line