Part 15 (1/2)

Square

Q What is this? A A square Q Why is it called a square? A Because all its angles are right angles, and its sides are equal Q How les Q What would it le to the opposite one? A Two right-angled isoceles triangles Q What would you call the line that we drew froonal Q Suppose we draw another line froles

Pent-agon

Q What is this? A A regular pentagon Q Why is it called a pentagon? A Because it has five sides and five angles Q Why is it called regular? A Because its sides and angles are equal Q What does pentagon ure Q Are there any other kinds of pentagons? A Yes, irregular pentagons? Q What does irregular on

Q What is this? A A hexagon Q Why is it called a hexagon? A

Because it has six sides and six angles Q What does hexagon ure Q Are there ular and irregular Q What is a regular hexagon?

A When the sides and angles are all equal Q What is an irregular hexagon? A When the sides and angles are not equal

Hept-agon

Q What is this? A A regular heptagon Q Why is it called a heptagon? A Because it has seven sides and seven angles Q Why is it called a regular heptagon? A Because its sides and angles are equal Q What does a heptagon on? A A seven-sided figure, whose sides are not equal

Oct-agon

Q What is this? A A regular octagon Q Why is it called a regular octagon? A Because it has eight sides and eight angles, and they are all equal Q What does an octagon on? A An eight-sided figure, whose sides and angles are not all equal Q What does an octave on

Q What is this? A A nonagon Q Why is it called a nonagon? A Because it has nine sides and nine angles Q What does a nonagon on? A A nine-sided figure whose sides and angles are not equal

Dec-agon

Q What is this? A A regular decagon Q What does a decagon on? A Because it has ten sides and ten angles, and there are both regular and irregular decagons

Rect-angle or Oblong

Q What is this? A A rectangle or oblong Q How les has it? A Four, the sale and a square? A A rectangle has two long sides, and the other two are much shorter, but a square has its sides equal

Rhomb

Q What is this? A A rhole? A The sides of the rhole are not all equal Q Is there any other difference? A Yes, the angles of the rectangle are equal, but the rholes equal

Rhomboid

Q What is this? A A rhomboid Q What is the difference between a rhomb and a rhomboid? A The sides of the rholes, but the sides of the rhomb are equal

Trapezoid

Q What is this A A trapezoid Q How les, it has only two of its angles equal, which are opposite to each other

Tetragon

Q What do we call these figures that have four sides A Tetragons, tetrafour Q Are they called by another nales Q Howthose we have mentioned? A One, that is the square, all the others are irregular tetragons, because their sides and angles are not all equal Q By what naures on this board? A Polygons; those that have their sides and angles equal ould call regular polygons Q What would you call those angles whose sides were not equal? A Irregular polygons, and the son can have is three, and the number of corners are always equal to the number of sides

Ellipse or Oval