+1-415-670-9189

info@expertsmind.com

# Area Of A Circle, math Assignment Help

###
Area and volume of plane figures - Area Of A Circle, math

**AREA OF A CIRCLE**

(1) **Area:** The surface enclosed within a circle is called its area.

Area = pier^{2} where r = radius of the circle,

p =22/7 or 3.14

(2) **Circumference:** The boundary or perimeter of a circle is called its circumference.

Circumference = 2pier.

(3) **Area of a circular track:** Area of circular ring

= Area of outer circle - Area of inner circle.

= pieR^{2} - pr^{2}

= pie[R^{2} – r^{2}]

**Sector of a circle:** AOB is a sector making an angle e at the centre O.

(1) Area of a sector =

(2) Perimeter of sector = r + r + l

**Segment of a circle:** Let ACB be minor segment of a circle of radius r subtending an angle e at the centre O.

(1) **Area of a segment ACB: **

= Area of sector OAB - Area of OAB

**Area of **Δ**AOB**

**Some basic concepts:** (1) Distance moved by a wheel in 1 revolution = Circumference of the wheel.

(2) Number of revolutions in 1 minute

(3) Angle described by minute hand in 60 min = 360·

(4) Angle described by hour hand in 24 hours = 360·

**Arc of a circle:** (1) If an arc AB makes an angle q° at the centre of a circle of radius r, then.

(2) Length of arc AB =

**Major segment:** Area of major segment BDAB

= (area of the circle) - (area of segment ACBA).

**Live Math Experts: Help with Area Of A Circle Assignments - Homework**

Expertsmind.com offers help with Area Of A Circle assignment and homework in mathematics subject. Experts mind’s math experts are highly qualified and experienced and they can solve your complex Area Of A Circle math problems within quick time. We offer email based assignment help –homework help service in all math topics including Area Of A Circle .

**Math Online Tutoring**: Area Of A Circle

We at Expertsmind.com arrange instant online tutoring session in Area Of A Circle math topic. We provide latest technology based whiteboard where you can take session just like live classrooms. Math experts at expertsmind.com make clear concepts and theory in Area Of A Circle Math topic and provide you tricky approach to solve complex Area Of A Circle problems.

**AREA OF A CIRCLE**

**Area:**The surface enclosed within a circle is called its area.

^{2}where r = radius of the circle,

**Circumference:**The boundary or perimeter of a circle is called its circumference.

**Area of a circular track:**Area of circular ring

^{2}- pr

^{2}

^{2}– r

^{2}]

**Sector of a circle:**AOB is a sector making an angle e at the centre O.

**Segment of a circle:**Let ACB be minor segment of a circle of radius r subtending an angle e at the centre O.

**Area of a segment ACB:**

**Area of**Δ

**AOB**

**Some basic concepts:**(1) Distance moved by a wheel in 1 revolution = Circumference of the wheel.

**Arc of a circle:**(1) If an arc AB makes an angle q° at the centre of a circle of radius r, then.

**Major segment:**Area of major segment BDAB

**Live Math Experts: Help with Area Of A Circle Assignments - Homework**

**Math Online Tutoring**: Area Of A Circle