Question
3. "When two lines intersect at a 90 degree angle, they are called perpendicular." Which of the words in the previous sentence is an undefined term used in geometry? a. Intersect b. Degree c. Lines d. Perpendicular
Solution
4.5
(441 Votos)
Tatiana Maria
Elite · Tutor por 8 anos
Resposta
The correct answer is 'c'.
Explicação
## Step 1In geometry, there are certain terms that are not defined but are understood intuitively. These terms are known as undefined terms. They include concepts such as points, lines, and planes.## Step 2In the given sentence, "When two lines intersect at a 90 degree angle, they are called perpendicular," the term "lines" is an undefined term. This is because it is a fundamental concept in geometry that is not defined but is understood intuitively.## Step 3The other options, "intersect", "degree", and "perpendicular", are not undefined terms. "Intersect" is a defined term, "degree" is a defined term, and "perpendicular" is a defined term.