Pax math
perimeter of a rectangle formula – AnswerP=2l+2w or 2(l + w)
Peremiter of square formula – AnswerP= 4 x side
Triangle Perimeter Formula – Answera+b+c (add 3 sides)
Triangle Area Formula – AnswerA=1/2bh ( base times height, divided by 2)
rectangular pyramid – Answera solid figure with a rectangle for its base and triangles for all other faces
( 4 triangles)
Rectangular Pyramid Volume – AnswerV=1/3lwh
Formula for perimeter of circle – AnswerPie times d (d is diameter) OR
C= 2 x pie x r (r is radius which is half of diameter)
Area is expressed in what type of units – AnswerSquare units (cm2, ft2, and mi2)
Area of a parallelogram formula – AnswerA=bh
Area of a trapezoid formula – AnswerA= 1/2(b1 + b2)h
Apothem – Answera line from the center of a regular polygon at right angles to any of its sides.
area of a regular polygon formula – AnswerA = 1/2ap ( a is length of apothem and p is perimeter)
How is area of an irregular polygon determined – AnswerBy decomposing or breaking apart the figure
into smaller shapes and then adding those areas together
Ex if it consist of a triangle and 2 rectangles add the area of triangle to area of rectangles
1 / 2
Pax math
circle – AnswerThe set of all points in a plane that are the same distance from a given point called the
center
Circumference – AnswerThe distance around a circle
Circumference of a circle formula – AnswerC=2πr (r is radius)
Area of a circle formula – AnswerA=πr²
Arc – AnswerPart of a circle connecting two points on the circle.
Pythagorean Theorem – Answera²+b²=c²
Hypotenuse – Answerthe longest side of a right triangle
Volume – Answerhow much space an object occupies
surface area – AnswerThe measurement of the outer surface of an object.
Rectangular Prism Surface Area – AnswerSA=2lw+2lh+2wh
Rectangular prism has how many sides – Answer6
How is surface area of a prism measured – AnswerAdding area of all faces and bases (best to unfold the
image to see what shapes are included)
How would you determine surface area of triangular prism – AnswerIt consist of 2 triangles and 3
rectangles
So area of triangle (twice) and area of rectangle (3 times