Symmetry
Akopọ
Symmetry is everywhere, from the wings of a butterfly to the face of a clock, and mathematics gives it a precise meaning. A shape has symmetry when part of it matches another part exactly, either by folding it over a line or by turning it about a point. Spotting symmetry lets you understand a shape's structure at a glance.
In this lesson you will count lines of symmetry and find the order of rotational symmetry for two-dimensional shapes, then extend the idea to the symmetry properties of solids such as prisms, cylinders, pyramids and cones. Clear descriptions in words make every kind of symmetry easy to identify.
Awọn Afojusun
- Recognise line symmetry and order of rotational symmetry in two dimensions.
- Recognise symmetry properties of prisms, cylinders, pyramids and cones. (Extended only)
Akọ̀wé Ẹ̀kọ́
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
Ìdánwò Ẹ̀kọ́
Oriire fun ipari ẹkọ lori Symmetry. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.
Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.
Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.
- How many lines of symmetry does a square have? A. 1 B. 2 C. 3 D. 4 Answer: D
- What is the order of rotational symmetry of an equilateral triangle? A. 1 B. 2 C. 3 D. 6 Answer: C
- How many lines of symmetry does a rectangle (that is not a square) have? A. 0 B. 2 C. 3 D. 4 Answer: B
- A shape with no rotational symmetry has order of rotational symmetry equal to: A. 0 B. 1 C. 2 D. infinite Answer: B
- Which solid has an axis of symmetry of infinite order? A. cuboid B. square-based pyramid C. cone D. triangular prism Answer: C
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
Awọn Iwe Itọsọna Ti a Gba Nimọran
Ṣe Adaṣe Awọn Ibeere Idanwo Adaṣe
Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Symmetry? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.
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