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In fig. ABCD is a parallelogram . If angle DAB = 60 and angle DBC = 80 then angle CDB =
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In fig. ABCD is a parallelogram . If angle DAB = 60 and angle DBC = 8...
Given:
- ABCD is a parallelogram.
- Angle DAB = 60°
- Angle DBC = 80°
To find:
- Angle CDB
Solution:
To find angle CDB, we can use the properties of a parallelogram.
Property 1:
In a parallelogram, opposite angles are equal. Therefore, angle ABC = angle CDA.
Property 2:
The sum of the angles in a triangle is 180°.
Now, let's solve the problem step by step.
Step 1: Find angle ABC
Since ABCD is a parallelogram, angle ABC = angle CDA.
So, angle ABC = angle CDA = 60°.
Step 2: Find angle ADC
The sum of the angles in a triangle is 180°.
Therefore, angle ADC = 180° - angle DAB - angle ABC
= 180° - 60° - 60°
= 60°.
Step 3: Find angle CDB
In parallelogram ABCD, angle DBC = angle ADC.
So, angle CDB = angle ADC = 80°.
Final Answer:
Therefore, angle CDB = 80°.
- ABCD is a parallelogram.
- Angle DAB = 60°
- Angle DBC = 80°
To find:
- Angle CDB
Solution:
To find angle CDB, we can use the properties of a parallelogram.
Property 1:
In a parallelogram, opposite angles are equal. Therefore, angle ABC = angle CDA.
Property 2:
The sum of the angles in a triangle is 180°.
Now, let's solve the problem step by step.
Step 1: Find angle ABC
Since ABCD is a parallelogram, angle ABC = angle CDA.
So, angle ABC = angle CDA = 60°.
Step 2: Find angle ADC
The sum of the angles in a triangle is 180°.
Therefore, angle ADC = 180° - angle DAB - angle ABC
= 180° - 60° - 60°
= 60°.
Step 3: Find angle CDB
In parallelogram ABCD, angle DBC = angle ADC.
So, angle CDB = angle ADC = 80°.
Final Answer:
Therefore, angle CDB = 80°.
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In fig. ABCD is a parallelogram . If angle DAB = 60 and angle DBC = 80 then angle CDB =?
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In fig. ABCD is a parallelogram . If angle DAB = 60 and angle DBC = 80 then angle CDB =? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about In fig. ABCD is a parallelogram . If angle DAB = 60 and angle DBC = 80 then angle CDB =? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In fig. ABCD is a parallelogram . If angle DAB = 60 and angle DBC = 80 then angle CDB =?.
In fig. ABCD is a parallelogram . If angle DAB = 60 and angle DBC = 80 then angle CDB =? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about In fig. ABCD is a parallelogram . If angle DAB = 60 and angle DBC = 80 then angle CDB =? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In fig. ABCD is a parallelogram . If angle DAB = 60 and angle DBC = 80 then angle CDB =?.
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