Herons theory
What is it used to calculate
The area of a triangle when you know all 3 side lengths.
What units are used?
Square units.
What units are used to measure volume?
Cubic units.
What is the name for the distance around a circle?
Circumference
What does the word perpendicular mean?
Intersecting at a right angle
What does the “S” stand for?
It’s the semi-perimeter.
Does a sphere have a surface area?
Yes, it can.
What is volume?
The amount of space an object occupies.
What is the formula to find area of a circle?
Pi(r2)
What does bisect mean?
To divide into two equal parts.
Is Heron’s formula only for right triangles?
No, all triangle.
What is surface area?
Total area of all surfaces on a 3d object.
What a flat piece of paper have volume?
Yes, it would depending on the thickness.
What is the line segment that connects two points on a circle and passes through the center called
Diameter.
What is a perpendicular bisector?
A line that intersects a line segment at its midpoint and forms a right angle
What do you need to use Heron’s formula?
All 3 side lengths.
Is surface area the same is volume?
No.
What is the volume of of a rectangular prism with length of 5 cm and width of 3 cm and height of 2 cm.
30 cm³.
What is volume of pi commonly approximated to??
3.14
Where does any point on the perpendicular bisector of a line segment lie?
It is equidistant from the end of the line segment.
Can it give you a negative answer.
No.
What is surface area of a cube with sides of 2cm?
24cm2
How do you find the volume of a cube?
Multiply the length of one side by itself three times.
What is an arc?
A portion of the circumference of a circle.
Can a perpendicular bisector be drawn on a curved line?
No perpendicular bisectors four straight lines.