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.
Akọmọ Ojú-ẹkọ
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ayẹwo Ẹkọ
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
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Àwọn Ìwé Tó Dáa Láti Kà
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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