Circles
Is a circle a polygon?
No, a circle is not a polygon.
What is a right triangle?
A triangle with a right angle.
How do find the perimeter of a square?
Multiply the length of a side of the square by 4 because there are 4 equal sides on a square.
What is a linear pair?
Two angles connected to each other to add up to a 180 degrees.
What does parallel mean?
Two lines that will never cross.
If the radius of a circle is 4 cm, then what is the circumference?
The circumference of the circle is 33.12 cm.
2 x r x 3.14 = Circumference
What is an isosceles triangle?
A triangle with two equal sides.
How do you find the area of a square?
You use the length of one of the sides and multiply that by itself.
Example: One side of a square is 4 inches. To find the area I have to multiply 4 x 4. The area of the square is 16 in2.
What is a complimentary angle?
Two angles that add up to 90 degrees.
What does perpendicular mean?
Right angle.
What are 26 digits of PI?
3.1415926535897932384626433
What is a scalene triangle?
A triangle with no equal sides.
What is a square?
A square is a 2D quadrilateral shape with four equal sides and four right angles.
What is a supplementary angle?
Two angles that add up to 180 degrees.
What are diagonals?
Lines that connect from two vertices.
What is the radius of a circle?
A straight line that starts at the middle point of the circle and ends at the circumference.
How do you find the area of a right triangle?
First, you take the length of the two sides that make up the right angle and multiply that. Then, you divide the resent product by 2. Your quotient is the area of the triangle.
How many lines of symmetry does a square have?
A square has four lines of symmetry.
Can angles be adjacent?
No.
What does bisect mean?
To cut in half.
If the radius of a circle is 4 cm, then what is the area of the circle?
The area of the circle is 50.24 cm2.
3.14 x (r x r) = Area
What is the Pythagorean Theorem?
When you have a right triangle and you know two sides, you can find the third side.
Do the diagnals of a square bisect each other?
Yes, the diagnals of a square bisect each other.
Can angles be parallel?
No.
What does adjacent mean?
Right next to each other.