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23 questions
Which of these is the correct formula for the area of a circle?
A = πd
A = πr
A = 2πr
A = πr2
What is the exact area of this circle?
4π m2
8π m2
16π m2
π m2
What is the radius of a circle with an area of 49π?
49
10
7
14
What is the radius of a circle with an area of 64π?
64
12
8
32
is the formula for?
πr2 ×(360°θ°)arc length
area of a sector
area of a segment
arc measure
What fraction of the circle is shaded, in its simplest form?
36090
360100
90
41
What is the area of the shaded region? Round to the nearest hundredth.
1.26
452.39
9.42
113.10
What fraction of the circle is shaded, in its simplest form?
360100
3610
185
100360
Find the area of the shaded sector of circle O. The radius is 6 inches and the central angle is 100°. Give your answer to two decimal places.
5.24
10.47
3.142
40π
What fraction of the circle is shaded, in its simplest form?
14426
7213
36065
None of these
What is the area of the shaded sector, to two decimal places?
19.29cm2
163.93cm2
623.96cm2
None of these
You stop for lunch at a local pizza shop where each pizza is cut into 8 slices. Would your hunger be better satisfied with one slice from a 16 inch pizza or two slices from a 12 inch pizza
One Slice
Two Slices
If Pacman's mouth, when open, is 70° and the radius of his mouth is 8mm, what is the area of the rest of Pacman's body? Give your answer to two decimal places.
161.97mm2
39.10mm2
40.49mm2
9.77mm2
Find the length of the arc to 2dp
9.42cm
150.80cm
4.71cm
18.85cm
Find the length of the arc to 2dp
31.42cm
15.71cm
282.74cm
23.56cm
Find the length of the arc to 2dp
2.09m
301.59m
1.05m
2.51m
Give yourself an effort rating:
R = I didn't put the effort in
A = I tried, but I can do better
G = I gave it my all
R
A
G
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You have a Learning Checkpoint tomorrow.
How are you going to prepare?
Complete my Hegarty tasks, review the lesson slides, practice as much as I can.
Glance over Hegarty, think about the lessons and try to remember what we did.
I'll try to remember things between now and then.
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