Geometrical Constructions
Akopọ
Some geometry is done not by calculation but by careful drawing. With nothing more than a ruler, a protractor and a pair of compasses you can measure an angle, build an accurate triangle from three lengths, and unfold a solid into a flat net. These are practical skills, and accuracy is everything.
In this lesson you will learn to measure and draw lines and angles, to construct a triangle from three given sides using compass arcs, and to draw and read the nets of simple solids. Each method is set out as a clear, ordered list of steps you can follow with instruments in hand.
Awọn Afojusun
- Measure and draw lines and angles.
- Construct a triangle, given the lengths of all sides, using a ruler and pair of compasses only.
- Draw, use and interpret nets.
Ẹ̀kọ́ Ohùn
Gbọ́ ẹ̀kọ́ yìí nínú áàpù
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Ṣí àwòrán ọpọlọ nínú áàpù
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Gba ohun èlò Green Bridge CBT sórí fóònù tàbí kọ̀mpútà rẹ fún gbogbo ilé ìkàwé IGCSE: ìwé ìdánwò àtijọ́, ìlànà ìdíwọ̀n, àwòrán èrò, káàdì ìkẹ́kọ̀ọ́ àti ẹ̀kọ́ ohùn.
Ìdánwò Ẹ̀kọ́
Oriire fun ipari ẹkọ lori Geometrical Constructions. 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.
- Which instrument is used to measure the size of an angle? A. ruler B. protractor C. compasses D. set square Answer: B
- To construct a triangle given the lengths of all three sides, you use: A. a protractor only B. a ruler and protractor C. a ruler and compasses only D. compasses only Answer: C
- How many squares make up the net of a cube? A. 4 B. 5 C. 6 D. 8 Answer: C
- Which set of three side lengths cannot form a triangle? A. 3 cm, 4 cm, 5 cm B. 2 cm, 3 cm, 6 cm C. 5 cm, 5 cm, 5 cm D. 6 cm, 8 cm, 10 cm Answer: B
- The net of a cylinder consists of: A. two circles and a rectangle B. six rectangles C. one circle and a triangle D. four triangles and a square Answer: A
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Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Geometrical Constructions? 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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