In the diagram, ST||PQ reflex angle SRQ = 198° and < RQP = 72°. Find the val...
Question
In the diagram, ST||PQ reflex angle SRQ = 198° and < RQP = 72°. Find the value of y.
Options
A)
18°
B)
54°
C)
87°
D)
92°
The correct answer is B.
Explanation:
R +198 = 360(angles at a point)
R = 360 - 198 = 162°
C = 72(alternate angle), b + c = 180(angles or straight line)
b = 190 - c = 180 - 72 = 108
a + b = R = 162
a = R - b = 162 - 108
= 54, but a = y(alternate angles)
y = 54°
More Past Questions:
Dicussion (1)
Other Subjects
- English Language
- Biology
- Government
- Physics
- Economics
- Chemistry
- Christian Religious Knowledge
- Commerce
- Geography
- Literature In English
- Accounts
- Agricultural Science
- General Paper
- Islamic Religious Knowledge
- History
- Computer Studies
- Further Mathematics
- Civic Education
- Current Affairs
- Catering Craft Practice
- Data Processing
- Marketing
- Animal Husbandry
- Math
- Reading
- Insurance
- Writing and Language
- Fine Arts
- Home Economics
- French
- Igbo
- Hausa
- Yoruba
- Basic Accounting
R +198 = 360(angles at a point)
R = 360 - 198 = 162°
C = 72(alternate angle), b + c = 180(angles or straight line)
b = 190 - c = 180 - 72 = 108
a + b = R = 162
a = R - b = 162 - 108
= 54, but a = y(alternate angles)
y = 54°