PINK is a rhombus with angle IPk = 64 degree. find angle IKN
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Question :-
PINK is a rhombus with ∠ IPK = 64° . find ∠ IKN .
Solution :-
∵ all sides of rhombus are equal to each other
∴ P K = I K
and so,
∠ PKI = ∠ PIK ( angles opp. to equal sides )
Now,
By angle sum property of triangle
In Δ PIK
→ ∠ PIK + ∠ PKI + ∠ KPI = 180°
→ 2 ∠ PIK + 64° = 180°
→ 2 ∠ PIK = 180° - 64°
→ ∠ PIK = 58°
Now,
∵ opposite sides of rhombus are parallel to each other
∴ PI ║ KN
so,
∠ PIK = ∠ IKN = 58° (alternate interior angles)
Hence,
∠ IKN = 58° .
________________________
Definition of rhombus :-
Rhombus is a quadrilateral with all sides equal .
Properties of rhombus :-
- Rhombus have all sides equal .
- opposite angles of rhombus are equal.
- adjacent angles of rhombus are supplementary .
- A rhombus is a parallelogram whose diagonals bisect each other at right angle .
Important formula related to rhombus :-
- perimeter of rhombus
perimeter of rhombus = 4 × ( side ) units
- area of rhombus
ar (rhombus) = 1/2 × d₁ × d₂
( where d₁ and d₂ are diagonals of rhombus ).
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Answer:
58 is the right answer buddy
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