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Math Problems
Grade 7
Identify and classify polygons
Which is a better estimate for the distance of a road from one end of a city to the other?
\newline
Choices:
\newline
(A)
30
kilometers
30\,\text{kilometers}
30
kilometers
\newline
(B)
30
meters
30\,\text{meters}
30
meters
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Find the
5
3
rd
53^{\text{rd}}
5
3
rd
term of the arithmetic sequence
\newline
10
,
15
,
20
,
…
10, 15, 20, \dots
10
,
15
,
20
,
…
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Which regular polygon would carry onto itself after a rotation of
30
0
∘
300^{\circ}
30
0
∘
about its center?
\newline
(A) decagon
\newline
(B) nonagon
\newline
(C) octagon
\newline
(D) hexagon
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Find the common ratio of the geometric sequence
−
9
,
−
72
,
−
576
,
…
-9,-72,-576, \ldots
−
9
,
−
72
,
−
576
,
…
\newline
Answer:
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What is the formula to find the perimeter of a rectangle?
\newline
P
=
l
⋅
w
P=l \cdot w
P
=
l
⋅
w
\newline
P
=
l
+
w
P=l+w
P
=
l
+
w
\newline
P
=
2
(
l
+
w
)
P=2(l+w)
P
=
2
(
l
+
w
)
\newline
P
=
2
l
+
w
P=2 l+w
P
=
2
l
+
w
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