SCIENCE
30.03.19
NAME
Teacher
Marina
GROUP
E3
Lesson 25. Math revision.
Dear all! This is your test ☼
1. Solve the following problems. Do not forget to simplify the resulting
fraction!
1
SCIENCE
30.03.19
NAME
Teacher
Marina
GROUP
E3
2. Classify each angle.
2
SCIENCE
30.03.19
NAME
Teacher
Marina
GROUP
E3
3. Graph shows correlation between x and y.
a. If x=2 y=? ___________________________________________________
b. If x=6 y=? ___________________________________________________
c. Write down the general rule you can use to calculate y if you know x
______________________________________________________________
d. If x=13 y=? __________________________________________________
3
SCIENCE
30.03.19
NAME
Teacher
Marina
GROUP
E3
4. Express each phrase as a rate and as a unit rate. First one has been done
for you!
4
SCIENCE
30.03.19
NAME
Teacher
Marina
GROUP
E3
5. Use the table below to figure out ratio if elm trees to all park trees.
Write it down and plot the graph.
Ratio: ________________________________________________________
City parks
Elm Trees Planted
Total Trees Planted
South side
14
168
Eastern
16
192
West End
22
264
North Ridge
8
96
5
SCIENCE
30.03.19
NAME
Teacher
Marina
GROUP
E3
6. Please solve the word problems below. Use your knowledge of
proportions and do not use any formulas with the π number!
a) The perimeter of circle is 16 cm, you need to find arc length of a sector
with angle of 45°.
___________________________________________________________
___________________________________________________________
___________________________________________________________
b) The perimeter of circle is 30 cm, and the arc length is 3 cm. You need to
find the angle of a sector.
___________________________________________________________
___________________________________________________________
___________________________________________________________
c) The area of circle is 48 cm2, you need to find the area of a sector with
angle of 120°.
___________________________________________________________
___________________________________________________________
___________________________________________________________
d) The arc length of a sector with angle 45° is 18 cm. You need to find arc
length of a sector with angle 30°
___________________________________________________________
___________________________________________________________
___________________________________________________________
e) The area of a sector with angle 60° is 36 cm2. You need to the area of a
sector with angle 90°
___________________________________________________________
___________________________________________________________
___________________________________________________________
6
SCIENCE
30.03.19
NAME
Teacher
Marina
GROUP
E3
7. Bonus task! Figure out which slice of pizza is the better buy (cheaper per
unit of area). (Hint: use π to calculate area of the whole pizza).
___________________________________________________________
___________________________________________________________
___________________________________________________________
___________________________________________________________
___________________________________________________________
___________________________________________________________
___________________________________________________________
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