-
Question 1: How many vertices does a triangle have?
Solution: A triangle has 3 vertices.
-
Question 2: What is the sum of the angles in a triangle?
Solution: The sum of the angles in a triangle is $180^\circ$.
-
Question 3: A triangle with all three sides equal is called?
Solution: An equilateral triangle.
-
Question 4: A triangle with two sides equal is called?
Solution: An isosceles triangle.
-
Question 5: A triangle with all three sides of different lengths is called?
Solution: A scalene triangle.
-
Question 6: Can a triangle have two right angles?
Solution: No, because the sum of two right angles is $180^\circ$, which means the third angle would be $0^\circ$.
-
Question 7: What is the side opposite to the right angle in a right-angled triangle called?
Solution: It is called the hypotenuse.
-
Question 8: If two angles of a triangle are $60^\circ$ and $70^\circ$, what is the third angle?
Solution: The third angle is $180^\circ - (60^\circ + 70^\circ) = 50^\circ$.
-
Question 9: What does SSS congruence criterion stand for?
Solution: Side-Side-Side congruence criterion.
-
Question 10: What does SAS congruence criterion stand for?
Solution: Side-Angle-Side congruence criterion.