Similarity
Akopọ
Two figures are similar when they have the same shape but not necessarily the same size: one is a scaled copy of the other. Every pair of matching lengths is in the same ratio, the scale factor, which lets you find a missing length from a single comparison.
In this lesson you will recognize similar figures, use the scale factor to calculate lengths, and (Extended) see how areas scale by the square of the scale factor and volumes by its cube. That area and volume rule is a favorite of examiners.
Awọn Afojusun
- Recognize similar figures and calculate lengths of similar figures, and (Extended) relate the areas and volumes of similar figures.
Ẹ̀kọ́ Ohùn
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Àwòrán ọpọlọ
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Káàdì ìrántí
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Oriire fun ipari ẹkọ lori Similarity. 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.
- Two similar triangles have matching sides 4 and 6. The scale factor is: A. 1.2 B. 1.5 C. 2 D. 2.4 Answer: B
- If the length scale factor is k, the area scale factor is: A. k B. 2k C. k squared D. k cubed Answer: C
- If the length scale factor is k, the volume scale factor is: A. k B. k squared C. k cubed D. 3k Answer: C
- Similar figures have corresponding angles that are: A. doubled B. equal C. halved D. supplementary Answer: B
- Two similar solids have lengths in ratio 2:3. The volume ratio is: A. 2:3 B. 4:9 C. 8:27 D. 6:9 Answer: C
Ṣiṣẹ́ lórí àwọn ìbéèrè wọ̀nyí nínú ohun èlò náà
Ṣiṣẹ́ lórí àwọn ìbéèrè wọ̀nyí nínú ohun èlò náà
Awọn Iwe Itọsọna Ti a Gba Nimọran
Ẹ̀kọ́ síwájú láti àwọn orísun ṣíṣí
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Abala ìwé ẹ̀kọ́
Solve Proportion and Similar Figure Applications
Solve proportions
"Elementary Algebra: Solve Proportion and Similar Figure Applications" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/elementary-algebra/pages/8-7-solve-proportion-and-similar-figure-applications. Access for free at https://openstax.org/books/elementary-algebra/pages/1-introduction
Àwọn àjọ mìíràn ló tẹ̀ wọ́n jáde lábẹ́ ìwé àṣẹ ṣíṣí, a sì dá wọn lọ́lá bí wọ́n ṣe béèrè. Àwọn ìjápọ̀ ń ṣí ojú òpó wọn.
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