Solve (1/2*105)*(1/2*875)*pi=

$$( \frac { 1 } { 2 } \times 105 ) \times ( \frac { 1 } { 2 } \times 875 ) \times \pi =$$

Evaluate

$$\frac{91875\pi }{4}\approx 72158.456262141$$

Solution Steps

Multiply \frac{1}{2} and 105 to get \frac{105}{2}.

$$\frac{105}{2}\times \frac{1}{2}\times 875\pi$$

Multiply \frac{105}{2} times \frac{1}{2} by multiplying numerator times numerator and denominator times denominator.

$$\frac{105\times 1}{2\times 2}\times 875\pi$$

Do the multiplications in the fraction \frac{105\times 1}{2\times 2}.

$$\frac{105}{4}\times 875\pi$$

Express \frac{105}{4}\times 875 as a single fraction.

$$\frac{105\times 875}{4}\pi$$

Multiply 105 and 875 to get 91875.

$$\frac{91875}{4}\pi$$