Area of a circle Geometry 7 - WordPress.com · March 07, 2017 Geometry 7.9 Area of Circles &...

2
March 07, 2017 Geometry 7.9 Area of Circles & Sectors Learning Target : I can evaluate the area of circles & sectors. [G.C.5] A circle = π r 2 Area of a circle = π radius 2 Area of a circle ** Remember to follow order of operations (do exponents before you multiply) The diameter of a circle is 11cm. Find the area. 1. 2. The area of a circle is 158.3 yd 2 . What is the diameter ? Sector of a Circle Area of sector Area of circle degrees in arc 360˚ = - A region bounded by 2 radii of the circle and their intercepted arc. sector APB 3. Find the area of the sectors formed by ∠HJK. H ˚ m 4. Find the area of ⨀C

Transcript of Area of a circle Geometry 7 - WordPress.com · March 07, 2017 Geometry 7.9 Area of Circles &...

Page 1: Area of a circle Geometry 7 - WordPress.com · March 07, 2017 Geometry 7.9 Area of Circles & Sectors Learning Target: I can evaluate the area of circles & sectors. [G.C.5] A circle

March 07, 2017

Geometry 7.9 Area of Circles & Sectors

Learning Target:I can evaluate the area of circles & sectors. [G.C.5]

Acircle = π r2

Area of a circle = π radius2

Area of a circle

** Remember to follow order of operations (do exponents before you multiply)

The diameter of a circle is 11cm. Find the area. 1.

2. The area of a circle is 158.3 yd2. What is the diameter?

Sector of a Circle

Area of sectorArea of circle

degrees in arc360˚

=

- A region bounded by 2 radii of the circle and their intercepted arc.

sector APB

3. Find the area of the sectors formed by ∠HJK.

H

˚

m

4. Find the area of ⨀C

Page 2: Area of a circle Geometry 7 - WordPress.com · March 07, 2017 Geometry 7.9 Area of Circles & Sectors Learning Target: I can evaluate the area of circles & sectors. [G.C.5] A circle

March 07, 2017

5. Find the area of the shaded region.

6 ft

18 ft

Assignment:7.9 worksheet


Esercitazione 3 - Testo - Docenti Unifem.docente.unife.it/.../Esercitazione3_parte1.pdfEsercitazione 3 ± Suddivisione in aree parziali tronco Abitanti D.I. Q Qn Area 1 Area 2 Area

Esercitazione 3 - Testo - Docenti Unifem.docente.unife.it/.../Esercitazione3_parte1.pdfEsercitazione 3 ± Suddivisione in aree parziali tronco Abitanti D.I. Q Qn Area 1 Area 2 Area

Angle Measures, Arc Lengths, Area of Sectors, & Circular ... · Main Ideas/Questions Notes/Examples TR IGONOMETRIC FUNCTIONS Trigonometry is the study of the relationships among the

Angle Measures, Arc Lengths, Area of Sectors, & Circular ... · Main Ideas/Questions Notes/Examples TR IGONOMETRIC FUNCTIONS Trigonometry is the study of the relationships among the

LATTICE POINTS ON CIRCLES, SQUARES IN ARITHMETIC ...matematicas.uam.es/~franciscojavier.cilleruelo/Papers/lattice points... · LATTICE POINTS ON CIRCLES, SQUARES IN ARITHMETIC PROGRESSIONS

LATTICE POINTS ON CIRCLES, SQUARES IN ARITHMETIC ...matematicas.uam.es/~franciscojavier.cilleruelo/Papers/lattice points... · LATTICE POINTS ON CIRCLES, SQUARES IN ARITHMETIC PROGRESSIONS

Balancing Controllers' Workload by Locally Redesigning Airspace Sectors Irina Kostitsyna, Joseph Mitchell, Girishkumar Sabhnani.

Balancing Controllers' Workload by Locally Redesigning Airspace Sectors Irina Kostitsyna, Joseph Mitchell, Girishkumar Sabhnani.

6.1 & 6.4 an overview of the area problem area

6.1 & 6.4 an overview of the area problem area

Surface Area of Cylinders

Surface Area of Cylinders

Review - circles part 2 - practice test KEY.notebook€¦ · Geometry 1-2 Circles Part 2 — Sumrnative Review Name Date —3) and radius 6. 1. Write the standard equation of a circle

Review - circles part 2 - practice test KEY.notebook€¦ · Geometry 1-2 Circles Part 2 — Sumrnative Review Name Date —3) and radius 6. 1. Write the standard equation of a circle

Area equaz matematica

Area equaz matematica

5-7 Circles: Circumference and Arc Length

5-7 Circles: Circumference and Arc Length

Current Situation in the Neutrino (& Charged-Lepton) Sectors · Current Situation in the Neutrino (& Charged-Lepton) Sectors Andr e de Gouv^ea Northwestern University Workshop on

Current Situation in the Neutrino (& Charged-Lepton) Sectors · Current Situation in the Neutrino (& Charged-Lepton) Sectors Andr e de Gouv^ea Northwestern University Workshop on

AREA OF CIRCLES. MG 1.1 Understand the concept of a constant such as π; know the formulas for the circumference and area of a circle. Objective: Understand.

AREA OF CIRCLES. MG 1.1 Understand the concept of a constant such as π; know the formulas for the circumference and area of a circle. Objective: Understand.

6.1 Circles and Circumference - Big Ideas Math 6/06/g6_06... · 6.1 Circles and Circumference How can you fi nd the circumference of a circle? Archimedes was a Greek mathematician,

6.1 Circles and Circumference - Big Ideas Math 6/06/g6_06... · 6.1 Circles and Circumference How can you fi nd the circumference of a circle? Archimedes was a Greek mathematician,

LATTICE POINTS ON CIRCLES, SQUARES IN ARITHMETIC ... · LATTICE POINTS ON CIRCLES, SQUARES IN ARITHMETIC PROGRESSIONS AND SUMSETS OF SQUARES JAVIER CILLERUELO AND ANDREW GRANVILLE

LATTICE POINTS ON CIRCLES, SQUARES IN ARITHMETIC ... · LATTICE POINTS ON CIRCLES, SQUARES IN ARITHMETIC PROGRESSIONS AND SUMSETS OF SQUARES JAVIER CILLERUELO AND ANDREW GRANVILLE

Circumference of Circles (3.14)...Circumference of Circles (3.14) Author Jinky Dabon Subject Maths Keywords circumference of a circle, quadrant, semicircle, three-quarters Created

Circumference of Circles (3.14)...Circumference of Circles (3.14) Author Jinky Dabon Subject Maths Keywords circumference of a circle, quadrant, semicircle, three-quarters Created

Area superficie

Area superficie

Year 6 – Circumference of Circles (Worksheet)

Year 6 – Circumference of Circles (Worksheet)

Geom Area Cincunf

Geom Area Cincunf

Total Surface Area - mathppt.com · Find the surface area of the cone below. SA BA LA=+ Surface Area = Base Area + Lateral Area SA r r=π• +π• ...

Total Surface Area - mathppt.com · Find the surface area of the cone below. SA BA LA=+ Surface Area = Base Area + Lateral Area SA r r=π• +π• ...

Surface area of cone

Surface area of cone

Sectors, Segments, & Annuli

Sectors, Segments, & Annuli