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Geometry of Circles - Central Angle from Inscribed (Level 1)

This math topic explores the relationships between central angles and inscribed angles in a circle, focusing specifically on calculating central angles when given corresponding inscribed angles. Each of the problems presents a different circle configuration, and learners are tasked with finding specific central angles based on the given inscribed angles. The set of answers for each question requires learners to understand and apply theorems relating to angles in circles, ensuring a deeper comprehension of circle geometry at an intermediate level.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Central Angle from Inscribed

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Find angle BDR if angle BNR is 48º

BRND

Geometry of Circles - Central Angle from Inscribed Worksheet

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Math worksheet on 'Geometry of Circles - Central Angle from Inscribed (Level 1)'. Part of a broader unit on 'Geometry - Intermediate - Intro' Learn online: app.mobius.academy/math/units/geometry_intermediate_intro/
1
An svg image showing a math problem
Find angle MCR if angle MNR is 69º
a
128º
b
118º
c
143º
d
133º
e
35º
f
138º
2
An svg image showing a math problem
Find angle NCP if angle NRP is 38º
a
56º
b
96º
c
51º
d
76º
e
81º
f
19º
3
An svg image showing a math problem
Find angle ZNR if angle ZYR is 18º
a
21º
b
51º
c
36º
d
e
26º
f
31º
4
An svg image showing a math problem
Find angle DPY if angle DCY is 34º
a
63º
b
83º
c
58º
d
78º
e
68º
f
17º
5
An svg image showing a math problem
Find angle NRB if angle NMB is 20º
a
40º
b
10º
c
20º
d
45º
e
55º
f
30º
6
An svg image showing a math problem
Find angle NDP if angle NXP is 68º
a
126º
b
151º
c
146º
d
34º
e
136º
f
131º
7
An svg image showing a math problem
Find angle PBN if angle PRN is 57º
a
99º
b
129º
c
119º
d
114º
e
124º
f
29º