Solve left(0.4div2right)^2*3.14*2

$${ \left(0.4 \div 2 \right) }^{ 2 } \times 3.14 \times 2$$

Evaluate

$$0.2512$$

Solution Steps

Expand \frac{0.4}{2} by multiplying both numerator and the denominator by 10.

$$\left(\frac{4}{20}\right)^{2}\times 3.14\times 2$$

Reduce the fraction \frac{4}{20} to lowest terms by extracting and canceling out 4.

$$\left(\frac{1}{5}\right)^{2}\times 3.14\times 2$$

Calculate \frac{1}{5} to the power of 2 and get \frac{1}{25}.

$$\frac{1}{25}\times 3.14\times 2$$

Multiply \frac{1}{25} and 3.14 to get \frac{157}{1250}.

$$\frac{157}{1250}\times 2$$

Multiply \frac{157}{1250} and 2 to get \frac{157}{625}.

$$\frac{157}{625}$$

Factor

$$\frac{157}{5 ^ {4}} = 0.2512$$