Question

what is the value of x if the quadrilateral is a rhombus?
15
4x - 1
o 5
o 4
o 3
o 2

Explanation:

Step1: Recall property of rhombus

In a rhombus, all sides are equal. So, if the sides of the rhombus are \(4x - 1\) and \(15\), we can set up an equation.
\(4x-1 = 15\)

Step2: Solve the equation for \(x\)

Add 1 to both sides of the equation: \(4x-1 + 1=15 + 1\), which simplifies to \(4x=16\). Then divide both sides by 4: \(x=\frac{16}{4}=4\)

Answer:

D. 4