Mathematics (US) - 0444 CIE

Circumference And Area Of A Circle

Bayani Gaba-gaba

The circumference is the distance around a circle and the area is the surface it encloses, both governed by the constant \(\pi\). Extend these to a slice of the circle and you can find an arc length and the area of a sector.

In this lesson you will calculate the circumference and area of a circle, and the arc length and area of a sector, by treating a sector as a simple fraction of the whole circle.

Manufura

  1. Calculate the circumference and area of a circle, and the arc length and area of a sector.

Darasin Sauti

Saurari wannan darasi a cikin manhaja

Taswirar tunani

An zana wannan batu don ka ga yadda ra'ayoyi ke hadewa.

Bude taswirar tunani a cikin manhaja

Katunan tunawa

Gwaji mai sauri kan abin da ake jarraba a wannan batu.

Yi atisayen wadannan katuna a cikin manhaja

Takardar Darasi

Circular shapes are everywhere, from wheels to pizzas to clock faces. Knowing the circle formulas, and how a sector is just a fraction of the whole, handles a large slice of measurement problems.

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Nazarin Darasi

Barka da kammala darasi akan Circumference And Area Of A Circle. Yanzu da kuka bincika mahimman ra'ayoyi da ra'ayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.

Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.

Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.

  1. The circumference of a circle is given by: A. pi r squared B. 2 pi r C. pi r D. 4 pi r Answer: B
  2. The area of a circle is given by: A. 2 pi r B. pi d C. pi r squared D. pi r Answer: C
  3. The area of a circle of radius 7 (pi = 3.142) is about: A. 44.0 B. 153.9 C. 21.99 D. 49 Answer: B
  4. A sector with angle 72 degrees is what fraction of the circle? A. 1/4 B. 1/5 C. 1/6 D. 1/3 Answer: B
  5. Arc length of a sector is the whole circumference multiplied by: A. theta/180 B. theta/360 C. 360/theta D. theta Answer: B

Yi aikin wadannan tambayoyi a cikin manhaja

Yi aikin wadannan tambayoyi a cikin manhaja

Yi Aikin Tambayoyin Gwaji

Kana son yin aikin tambayoyin gwaji kan Circumference And Area Of A Circle? Sauke manhajar Green Bridge CBT don samun tambayoyin gwaji da cikakkun jarrabawa akan wannan batu.

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