Dec. 26

Trig functions

100

sin = 

O/H

200

sec = 

H/A

300

tan = 

O / A

400

sin(30 degrees) = 

1/2

500

tan(45 degrees) = 

1

Trig functions

100

cos = 

A/H

200

csc = 

H/O

300

cot = 

A/O

400

cos(45 degrees) = 

sqrt(2) / 2

500

cot(45 degrees) = 

1

Vocab

100

a triangle with all equal sides is _________

equilateral

200

a 5-sided polygon

pentagon

300

a 4-sided figure with no angles greater than 180 degrees

quadrilateral

400

7-sided polygon

heptagon

500

A) quadrilateral in which there are two pairs of parallel sides

B) name 11 and 12-sided polygons

A) parallelogram

B) 11 = hendecagon, 12 = dodecagon