WARM UP!
JAN. 25, 2013
QUESTION 1
A card is drawn from a deck of 52 cards.
Find the probability of drawing a picture
card, (includes jacks, queens, and kings.
QUESTION 2
Rotation Rules:
State the rule for each,
a. 180 degree rotation
b. 90 degree clockwise rotation.
c. 90 degree counter clockwise
rotation.
QUESTION 3
A right triangle has legs with length of 5
inches and 12 inches.
What is the area of a square drawn on
the hypotenuse?
QUESTION 4
Dilations:
In Math the word dilate means to _____________
or _________________ a figure.
If a scale factor is less than 1 then your figure gets
____________.
If a scale factor is greater than 1 then your figure
gets ______________.
TIME IS UP!!!
Trade and Grade!
ANSWERS
1. 3/13
2. a. change signs of both the x & y coordinate.
b. Switch the coordinates of each point and then
change the new 2nd coordinate to the opposite sign.
c. Switch the coordinates of each point and then
change the new 1st coordinate to the opposite sign.
3. 169 sq inches
4. Enlarged or reduced
Less than 1 your figure gets reduced.
Greater then 1 your figure gets enlarged
CRITICAL THINKING 1
Subtracting UP!
Can you figure out a way to take
out 1 from 14 so that you end up
with 15?
ANSWER
Use Roman Numerals:
If you take away I from XIV you
are left with XV or 15.
CRITICAL THINKING 2
A Clown-Undrum:
Baron Chillarado the Clown earned 3 gold bricks after
working an 8th grade b-day party. While walking home
he came to an old foot bridge. The sign said, “Weight
Capacity 150 pounds.” Chillarado weighs 148 pounds &
each brick weighs 1 pound. How did he get himself and
all three bricks across safely?
ANSWER
He juggled the gold
bricks as he walked.
That way at least one
was in the air at all
times so only two bricks
(2pds) and the Baron
(148pds) had weight on
the bridge at any given
time.