Geometrical Constructions
Gbogbo ọrọ náà
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.
Ebumnobi
- 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.
Nkuzi Olu
Gee ntị na nkuzi a na ngwa
Maapụ uche
E seela isiokwu a ka ị hụ otu echiche si ejikọta.
Mepee maapụ uche na ngwa
Kaadị ncheta
Omume ncheta ngwa ngwa n'ihe a na-anwale n'isiokwu a.
Mee omume kaadị ndị a na ngwa
Akwụkwọ Ọmụmụ
Ndetu Nkuzi Zuru Ezu di na Ngwa Green Bridge
Nweta ngwa Green Bridge CBT na ekwenti gi ma o bu kompiuta maka ulo akwukwo IGCSE zuru oke: akwukwo ule ndi gara aga, usoro nyocha, eserese uche, kaadi omumu na nkuzi olu.
Nnyocha Ọmụmụ
Ekele diri gi maka imecha ihe karịrị na Geometrical Constructions. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- 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
Rue ajuju ndi a n'ime ngwa ahu
Rue ajuju ndi a n'ime ngwa ahu
Akwụkwọ A Na-atụ Aro
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Geometrical Constructions? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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