2D shapes Flashcards
How many sides does a hexagon have?
6
How many sides does a pentagon have?
5
What name is given to a triangle which has two sides of the same length?
Isosceles
Name three types of quadrilateral apart from a square and a rectangle?
parallelogram, trapezium, rhombus
How many sides does a octagon have?
8
What does it mean to say that a polygon is regular?
All its sides (and therefore all its angles) are equal
What is the definition of a scalene triangle?
A triangle all of whose sides have different lengths
What name is given to a shape with 4 straight sides?
quadrilateral
What name is given to a shape with 9 straight sides?
nonagon
What name is given to a shape with 10 straight sides?
decagon
What is the formula for the area of a triangle?
(base x height) ÷ 2
What adjective is used to describe a polygon in which all the sides (and therefore all the angles) are equal?
regular
What name is given to a shape with 8 straight sides?
octagon
What name is given to a shape with a number of straight sides?
polygon
How many sides does a heptagon have?
7
What is the formula for the area of a parallelogram?
base x height
Fill in the two blanks in this sentence: Area is the amount of space inside a 2D shape, usually measured in [BLANK] or [BLANK]
cm2 or m2
Fill in the blank in this sentence: [BLANK] is the amount of space inside a 2D shape, usually measured in cm2 or m2
Area
What name is given to a triangle all of whose sides have the same length?
Equilateral
What is the definition of an isosceles triangle?
A triangle which has two sides of the same length
What kind of triangle is shown here?
Scalene
What is the definition of an equilateral triangle
A triangle all of whose sides have the same length
Which type of quadrilateral is shown here?
Rhombus
What name is given to a shape with 7 straight sides?
heptagon
How many sides does a nonagon have?
9
What name is given to a triangle all of whose sides have different lengths?
Scalene
How many sides does a quadrilateral have?
4
How many sides does a decagon have?
10
What kind of triangle is shown here?
Equilateral
What kind of triangle is shown here?
Isosceles
What name is given to a shape with 5 straight sides?
pentagon
Which type of quadrilateral is shown here?
Parallelogram
What does it mean to say that a polygon is irregular?
Not all its sides (and therefore not all its angles) are equal
What adjective is used to describe a polygon in which not all the sides (and therefore not all the angles) are equal?
irregular
What name is given to a shape with 6 straight sides?
hexagon
Which type of quadrilateral is shown here?
Trapezium
