Triangles
How many degrees do the interior angles of a triangle add to?
180°
How many sides does every quadrilateral have?
4
What is another name for an algorithm?
Flow chart
What makes a shape 3D?
It has length, width and height.
Is every square a rectangle?
Yes
Name the three triangles classified by their side lengths.
Which quadrilateral has only ONE pair of parallel sides?
Trapezium
Flow charts are made up mainly of what type of questions?
Yes/No questions
How many faces does a cube have?
6
Is every rectangle a square?
No
A triangle has angles of 35°, 55° and 90°. What type of triangle is it?
Right-angled triangle
What is the difference between a square and a rhombus?
A square has four right angles.
A rhombus doesn't have to.
Can a flow chart with 2 or more shapes on the same path?
No! Each shape gets its own path
How many edges does a rectangular prism have?
12
Name a quadrilateral with two pairs of equal sides but NO right angles.
Parallelogram or rhombus
A triangle has sides 8 cm, 8 cm and 5 cm. Classify it using side lengths.
Isosceles
Name the quadrilateral that has:
Rectangle
Why is "Does it have four equal sides?" a better question than "Is it a square?"
Because flow charts sort shapes using properties rather than guessing the name.
What is the difference between an edge and a vertex?
An edge is where two faces meet.
A vertex is where edges meet.
A shape has 4 equal sides and 4 right angles. Give ALL the names it can be called.
Square
Rectangle
Rhombus
Parallelogram
Quadrilateral
Polygon
A triangle has angles of 48° and 67°. Find the missing angle AND classify it by angle.
65°
Acute triangle
True or False?
"A parallelogram with four equal sides is always a square."
False
(It could be a rhombus.)
Write the first two questions you would ask in a flow chart to sort polygons.
Possible answer:
A shape has:
What shape is it?
Triangular prism
A shape:
Name every classification it belongs to.