Lingkaran ii
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1) The document discusses ratios of measurements for circles and sectors. 2) It provides an example where if the area of sector PKAL is 20 cm^2, the area of sector PQBR is found to be 30 cm^2. 3) The document proves that for any two angles α and β directed to the arc of a circle, the ratio of the area of the corresponding sectors is α:β = 2:1.
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The document proves that the angle at the center of a circle is twice the angle at the circumference. It draws a diameter from the center O through a point on the circle P. It defines the angles α and β and uses properties of circles, angles, and the diameter to show that the central angle AOB is equal to 2α, which is twice the angle at the circumference α.
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Method One proves that the angle at the centre (Angle AOB) is twice the angle at circumference (Angle APB) by showing that triangles OBP and OAP are isosceles triangles, which allows calculating the angles.
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This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...National Information Standards Organization (NISO)
This presentation was provided by Steph Pollock of The American Psychological Association’s Journals Program, and Damita Snow, of The American Society of Civil Engineers (ASCE), for the initial session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session One: 'Setting Expectations: a DEIA Primer,' was held June 6, 2024.Types of Herbal Cosmetics its standardization.
Physiology and chemistry of skin and pigmentation, hairs, scalp, lips and nail, Cleansing cream, Lotions, Face powders, Face packs, Lipsticks, Bath products, soaps and baby product,
Preparation and standardization of the following : Tonic, Bleaches, Dentifrices and Mouth washes & Tooth Pastes, Cosmetics for Nails.
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Lingkaran ii
- 1. Perbandingan Ukuran –ukuran Sebuah Lingkaran The Ratios of Measurements of a Circle. Consider the following figure. α = area of sector 1=length of arc 1 β area of sector 2 length of arc 21 α 2 P β
- 2. Example. The point P is the centre of the circle . If area of sector PKAL = 20 cm2 then, L a. find area of sector PQBR A • b. find area of the circle. K • R R Q B Answer LPQBR = 75o ↔LPQBR=LPKAL x 75 =20cm2.3=30cm2 LPKAL 50o 50 2 L =360o↔L=LPKAL x 360= 20cm2x 36 =144cm2 LPKAL 50o 50 5 500 P 75o
- 3. B A β D ∠AOB=α, ∠ADB=β, αnβ are directed to arc ACB The point O is centter of the circle and r is length of radius of the circle. In ∆ AOD, ∠DAO = ∠ADO, since OA = OD = r In ∆ BOD, ∠OBD = ∠OBD, since OB = OD = r α O β
- 4. So, ∠AOD = 180o - ∠DAO - ∠ADO = 180o - ∠ADO - ∠ADO = 180o – 2 ∠ADO ∠BOD = 180o - ∠OBD - ∠ODB = 180o - ∠ODB -∠ODB = 180o -2 ∠ODB ∠AOD + ∠BOD + α = 360o ↔ (180o - 2∠ADO) + (180o - 2∠ODB) + α =360o ↔ (180o + 180o) – 2(∠ADO + ∠ODB ) + α =360o ↔ α = 2(∠ADO+∠ODB) = 2β ↔ α=2β ↔ β=1 α 2 ↔ α = 2β