In a rectangle ABCD,if DBC=60, then find DCA
Please give step by step explanation not direct answer.
Answers
Answered by
2
Answer:
bt in a rectangle all the angles are of 90°
Answered by
12
Answer:
<DCA = 60°
Step-by-step explanation:
Given,
ABCD is rectangle.
Then, <A = <B = <C = <D = 90°
<DBC = 60°
We know that, diagonals of rectangle bisect each other. Then let the bisecting point of diagonals be O. Then < COB = 90°
Now in triangle COB,
By using angle sum property,
<COB + <OCB + <DBC = 180°
=> 90° + < OCB + 60° = 180°
=> <OCB = 180° - 150° = 30°
Hence, <OCB = 30°
We know that,
<OCB + <DCA = <DCB
=>30° + <DCA = 90°
=> <DCA = 90° - 30° = 60°
Thus, <DCA = 60°
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