Respuesta :
If ABCD is a rhombus:
x + 4 x - 3° + 90° = 180°
5 x + 87° = 180°
5 x = 180° - 87°
5 x = 93°
x = 93° : 5
x = 18.6°
Answer: E ) 18.6
x + 4 x - 3° + 90° = 180°
5 x + 87° = 180°
5 x = 180° - 87°
5 x = 93°
x = 93° : 5
x = 18.6°
Answer: E ) 18.6
The value of x is E. 18.6°
What is a rhombus?
- A parallelogram with four equal sides and sometimes one with no right angles is called a Rhombus.
- Diagonals of a rhombus are perpendicular.
How to find the value of x?
As we know, diagonals of a rhombus are perpendicular
Let the diagonals meet each other at O
∴ Considering ΔAOB
x + 4x -3 + 90 = 180 ( Since sum of all the internal angles of a triangle is 180 ° )
⇒ 5x = 93
⇒ x = 93/5 = 18.6
The value of x is 18.6°
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