12 x1 t03 01 arcs & sectors (2013)

Trigonometric Functions

Trigonometric Functionsradians2360

Trigonometric Functionsradians2360

Arcs & Sectors

Trigonometric Functionsradians2360

rC 2

Arcs & Sectors

Trigonometric Functionsradians2360

rC 2 2rA

Arcs & Sectors

Trigonometric Functionsradians2360

rC 2 2rA

Arcs & SectorsO

A

B

Trigonometric Functionsradians2360

rC 2 2rA

Arcs & SectorsO

A

B

AB is an arc

Trigonometric Functionsradians2360

rC 2 2rA

Arcs & SectorsO

A

B

AB is an arc

l

Trigonometric Functionsradians2360

rC 2 2rA

Arcs & SectorsO

A

B

AB is an arc

lrl

22

Trigonometric Functionsradians2360

rC 2 2rA

Arcs & SectorsO

A

B

AB is an arc

lrl

22

rl

Trigonometric Functionsradians2360

rC 2 2rA

Arcs & SectorsO

A

B

AB is an arc

lrl

22

rl

Length of an arc; rl

Trigonometric Functionsradians2360

rC 2 2rA

Arcs & SectorsO

A

B

OAB is a sector

AB is an arc

lrl

22

rl

Length of an arc; rl

Trigonometric Functionsradians2360

rC 2 2rA

Arcs & SectorsO

A

B

OAB is a sector

AB is an arc

lrl

22

rl

2

2rAOAB

Length of an arc; rl

Trigonometric Functionsradians2360

rC 2 2rA

Arcs & SectorsO

A

B

OAB is a sector

AB is an arc

lrl

22

rl

2

2rAOAB

221 rAOAB

Length of an arc; rl

Trigonometric Functionsradians2360

rC 2 2rA

Arcs & SectorsO

A

B

OAB is a sector

AB is an arc

lrl

22

rl

2

2rAOAB

221 rAOAB

Length of an arc; rl

Area of a sector; 221 rA

45

e.g.

O

A

B5

cm

45

rlAB e.g.

O

A

B5

cm

rlAB e.g.

45

45O

A

B5

cm

rlAB e.g.

45

cm 4

5

45O

A

B5

cm

rlAB 221 rAOAB

e.g.

45

cm 4

5

45O

A

B5

cm

rlAB 221 rAOAB

e.g.

45

cm 4

5

45

21 2

45O

A

B5

cm

rlAB 221 rAOAB

e.g.

45

cm 4

5

45

21 2

2cm 8

25

45O

A

B5

cm

45

rlAB 221 rAOAB

ABsegmentminor Area

e.g.

O

A

B5

cm

45

cm 4

5

45

21 2

2cm 8

25

45

rlAB 221 rAOAB

ABsegmentminor Area

sin21

sin21

21

2

22

r

rr

e.g.

O

A

B5

cm

45

cm 4

5

45

21 2

2cm 8

25

45

rlAB 221 rAOAB

ABsegmentminor Area

sin21

sin21

21

2

22

r

rr

e.g.

O

A

B5

cm

45

cm 4

5

45

21 2

2cm 8

25

45

rlAB 221 rAOAB

ABsegmentminor Area

sin21

sin21

21

2

22

r

rr

2

2

cm 28

1002252

142

254

sin4

521

e.g.

O

A

B5

cm

45

cm 4

5

45

21 2

2cm 8

25

45

rlAB 221 rAOAB

ABsegmentminor Area

sin21

sin21

21

2

22

r

rr

2

2

cm 28

1002252

142

254

sin4

521

e.g.

O

A

B5

cm

45

cm 4

5

45

21 2

2cm 8

25

Exercise 14B; 2 to 24 evens, 25, 28*