Week 12 day 1
2
The graph shows the height of a tennis ball from the time it is served to the time it hits the ground on the other side of the net. How many seconds elapse while the ball is 7 feet or more above the ground?
Record your answer and be sure to use the correct place value.
0
2
4
6
8
.2 .4 .6 .8 1.0 1.2 1.4 1.6 1.8time (s)
heig
ht (
ft)
•
450-450-900 Triangle Theorem
In a 450-450-900 triangle, both legs are congruent and the length of the hypotenuse is 2 times the
length of a leg.
hypotenuse =2leg450
450
s
s
s2
PardekooperPardekooper
HereHere’’s one for s one for baseball.baseball.A high school baseball diamond is a A high school baseball diamond is a square. The distance from base to square. The distance from base to
base is 90 ft. To the nearest foot, how base is 90 ft. To the nearest foot, how far does the catcher throw the ball far does the catcher throw the ball from home plate to second base ?from home plate to second base ?
90 ft.
x ft.x=90x=9022
x=126.9x=126.9
x=127x=127PardekooperPardekooper
300-600-900 Triangle Theorem
In a 300-600-900 triangle, the length of the hypotenuse is twice the length of the
shorter leg. The length of the longer leg is 3 times the length of the shorter leg..
hypotenuse =2shorter leg
longer leg= 3shorter leg
600
300
s2s
s3PardekooperPardekooper
Lets try a problemLets try a problem
h=2(5)h=2(5)
h=10h=10
600
300
5h
l
l=5l=533l=8.65l=8.65
h=2sh=2s l=sl=s33
PardekooperPardekooper
HereHere’’s anothers another
8=2s8=2s2 22 2
600
300
s8
l
l=4l=433l=6.92l=6.92
h=2sh=2s l=sl=s33
4=s4=s
PardekooperPardekooper
Just one moreJust one more
450300
72
b
ac
d
h=sh=s22
h=7h=722
s=7s=7
d=7d=7
c=7c=7
h=2sh=2sh=2(7)h=2(7)h=14h=14
a=14a=14
l=sl=s33l=7l=733l=12.11l=12.11
b=12.11b=12.11
PardekooperPardekooper
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