Question

The area of the rhombus is 20 square inches. What is x?

Answer 1

1/3 ft. = 4 inches
$x \times 4 = 20 {inches}^{2} \\ x = 20 \div 4 \\ x = 5$
The answer is 5 inches.

Hope this helps.

Answer 2

Answer:  First option is correct.

Step-by-step explanation:

Since we have given that

Area of the rhombus = 20 sq. inches

Height of rhombus = $\frac{1}{3}\ ft=\frac{1}{3}\times 12\ inches=4\ inches$

Base of rhombus = x inches

As we know the formula for "Area of rhombus":

$Area=base\times height\\\\20=x\times 4\\\\\dfrac{20}{4}=x\\\\5\ inches=x$

Hence, First option is correct.