3. Indice Definitions Triangles Quadrilaterals Regular polygons Circles Exercises
Definitions
Alberto Pardo Milan´s
e Perimeter and Area
4. Indice Definitions Triangles Quadrilaterals Regular polygons Circles Exercises
Definitions
Perimeter and Area
The perimeter of a surface is the length of this boundary.
The area of a surface is the amount of material needed to cover it
completely.
Alberto Pardo Milan´s
e Perimeter and Area
5. Indice Definitions Triangles Quadrilaterals Regular polygons Circles Exercises
Triangles
Alberto Pardo Milan´s
e Perimeter and Area
6. Indice Definitions Triangles Quadrilaterals Regular polygons Circles Exercises
Triangles
Area of a triangle
The area of a triangle can be found by multiplying the base times
the one-half the height.
Alberto Pardo Milan´s
e Perimeter and Area
7. Indice Definitions Triangles Quadrilaterals Regular polygons Circles Exercises
Quadrilaterals
Alberto Pardo Milan´s
e Perimeter and Area
8. Indice Definitions Triangles Quadrilaterals Regular polygons Circles Exercises
Quadrilaterals
Area and Perimeter of a Square
The perimeter of a square is the distance around the outside of the
square. A square has four sides of equal length. The formula for
finding the perimeter of a square is 4 times the length of a side.
The area of a square can be found by multiplying the length of a
side times itself.
Alberto Pardo Milan´s
e Perimeter and Area
9. Indice Definitions Triangles Quadrilaterals Regular polygons Circles Exercises
Quadrilaterals
Area and Perimeter of a Rectangle
A rectangle has four sides and four right angles. The formula for
finding the perimeter is 2 times the base plus 2 times the height.
The area of a rectangle can be found by multiplying the base times
the height.
Alberto Pardo Milan´s
e Perimeter and Area
10. Indice Definitions Triangles Quadrilaterals Regular polygons Circles Exercises
Quadrilaterals
Area and Perimeter of a Parallelogram
Parallelograms are quadrilaterals with opposite sides parallel (two
pairs of sides parallel). In a parallelogram opposite sides are
congruent (with the same length). The formula for finding the
perimeter is 2·Side a + 2·Side b. The area of a parallelogram can
be found by multiplying the base times the height.
Alberto Pardo Milan´s
e Perimeter and Area
11. Indice Definitions Triangles Quadrilaterals Regular polygons Circles Exercises
Quadrilaterals
Area of a Trapeziums
A trapezium is a quadrilateral (has 4 sides) and has only one pair
of sides parallel. To determine the area of a trapezoid, first add the
lengths of the 2 parallel sides, then divide by 2, finally multiply this
by the height (distance between the parallel sides).
Alberto Pardo Milan´s
e Perimeter and Area
12. Indice Definitions Triangles Quadrilaterals Regular polygons Circles Exercises
Regular polygons
Alberto Pardo Milan´s
e Perimeter and Area
13. Indice Definitions Triangles Quadrilaterals Regular polygons Circles Exercises
Regular polygons
Area and Perimeter of a Regular Polygon
The perimeter of regular polygon with n sides is n times the lenght
of a side. The area of a regular polygon is the one-half the
apothem times the perimeter.
Alberto Pardo Milan´s
e Perimeter and Area
14. Indice Definitions Triangles Quadrilaterals Regular polygons Circles Exercises
Circles
Alberto Pardo Milan´s
e Perimeter and Area
15. Indice Definitions Triangles Quadrilaterals Regular polygons Circles Exercises
Circles
Area and Circumference of a Circle
The circumference of a circle is the distance around the outside of
the circle. It could be called the perimeter of the circle. The
circumference of a circle can be found by multiplying π by the
diameter of the circle. If you know the radius, the diameter is twice
as large. The area of a circle can be found by multiplying π by the
square of the radius.
Alberto Pardo Milan´s
e Perimeter and Area
16. Indice Definitions Triangles Quadrilaterals Regular polygons Circles Exercises
Exercises
Alberto Pardo Milan´s
e Perimeter and Area
17. Indice Definitions Triangles Quadrilaterals Regular polygons Circles Exercises
Exercises
Exercise 1
Alberto Pardo Milan´s
e Perimeter and Area
18. Indice Definitions Triangles Quadrilaterals Regular polygons Circles Exercises
Exercises
Exercise 1
Alberto Pardo Milan´s
e Perimeter and Area
