Answer 10 triangle quiz and trivia questions, each with three options (A, B, C). Test your knowledge and see how well you know triangles!
1. What is the sum of the angles in a triangle?
A) 90 degrees B) 120 degrees C) 180 degrees
2. In a right triangle, what is the side opposite the right angle called?
A) Adjacent B) Hypotenuse C) Opposite
3. Which type of triangle has all sides of equal length?
A) Scalene triangle B) Isosceles triangle C) Equilateral triangle
4. What is the name for a triangle with one angle greater than 90 degrees?
A) Acute triangle B) Right triangle C) Obtuse triangle
5. In an isosceles triangle, how many sides are of equal length?
A) None B) One C) Two
6. What is the Pythagorean Theorem used for?
A) Calculating the area of a triangle B) Finding the sum of the interior angles of a triangle C) Relating the lengths of the sides in a right triangle
7. Which of the following formulas can be used to find the area of a triangle?
A) A = πr² B) A = 1/2 * base * height C) A = s²
8. What is the centroid of a triangle?
A) The point where all three medians intersect B) The point where all three altitudes intersect C) The point where all three perpendicular bisectors intersect
9. What is the inradius of a triangle?
A) The radius of the circumscribed circle B) The radius of the incircle C) The radius of the escribed circle
10. In a triangle, which angle is opposite to the longest side (the largest angle)?
A) The right angle B) The obtuse angle C) The acute angle