What is the special property of Alternate angles on parallel lines?
They are equal.
200
How many degrees in a right angle?
90
200
This triangle has 2 equal sides
Isosceles
200
What is the size of each angle in a rectangle?
90 degrees
200
What is the angle sum of a quadrilateral?
360 degrees
200
What is the special property of Cointerior angles on parallel lines?
They add up to 180 degrees
300
A reflex angle lies between ____ degrees and ____ degrees
180 and 360
300
The outside angle of a triangle is called the _______ angle
Exterior
300
The diagonals of a square _______ each other.
bisect
300
In a triangle, one angle is 45 degrees and another is 60 degrees. What is the size of the 3rd angle? (no calculator)
***Optional Double Points***
75 degrees
300
Which quadrilateral has only 1 pair of parallel sides?
Trapezium
400
4 right angles make one of these
***Optional Double Points***
A revolution
400
A scalene triangle has how many equal angles
0
400
How many pairs of parallel sides in a rectangle?
2
400
In a quadrilateral, one angle is a right angle, one is equal to 100 degrees and the 3rd angle equals 30 degrees. What is the size of the 4th angle? (no calculator)
140 degrees
400
2 angles add up to 90 degrees. We say that they are ______
Complementary
500
2 angles that add up to 180 degrees are known as _____ angles
Supplementary
500
A triangle has 2 equal sides and 2 angles both equal to 45 degrees. Give its full name.
***Your choice - Play for 500 or Double your current score***
Right angled isosceles triangle
500
Name a diagonal property of a square that is not a diagonal property of a rectangle
Diagonals bisect at right angles OR diagonals bisect the angles through which they pass
500
In an isosceles triangle, the top angle is equal to 40 degrees. What is the size of each base angle? (no calculator)