formulas

Question 1

sector area

Answer 1

theta/360
pie
radius squared

Question 2

arc length

Answer 2

theta/360
pie
diameter

Question 3

adding and subtracting minus numbers

Answer 3

++= +
–=+
+-=-
-+=-

Question 4

timesing minus numbers

Answer 4

+x+=+
-x-= +
+x-=-
-x+=-

same sign= positive
diff sign= negative

Question 5

volume of a cylinder

Answer 5

V=πr2h

Question 6

identifying arc and sectors

Answer 6

length= arc
area= sector

Question 7

Identifying sine and cosine

Answer 7

all three sides = cosine fraction
a side and the angle opposite this side= sine rule
two sides and the angle inbetween= cosine
just two sides- cosine