The ‘body mass index’ is used to find the body weight that is appropriate for a person’s height. It is calculated using the formula.
I = W/H^2
Where I is the body mass, W is the person’s weight in kg, and H is the person’s height in metres.
Use the formula to find the body mass index for an adult who is 190 cm tall and weighs 75 kg. Give your answer correct to 1 decimal place.
any1 help..how do i work this out?
Is it (w/h)^2 where you square the whole fraction, or just squaring h? plz clear this up
its I = W divided by H squared
To calculate the body mass index (BMI) using the formula I = W/H^2, where I is the body mass, W is the person's weight in kilograms, and H is the person's height in meters, you can follow these steps:
1. Convert the height from centimeters to meters. In this case, the person's height is 190 cm, so you divide it by 100 to get it in meters: 190 cm / 100 = 1.9 meters.
2. Square the height. Take the height value obtained in step 1 and multiply it by itself: 1.9 * 1.9 = 3.61 square meters.
3. Divide the person's weight by the squared height. The weight is given as 75 kg. So, the BMI can be calculated as follows: BMI = 75 kg / 3.61 square meters.
4. Calculate the BMI. Divide the weight (75 kg) by the squared height (3.61) to find the BMI: 75 / 3.61 = 20.78.
Therefore, the body mass index (BMI) for an adult who is 190 cm tall and weighs 75 kg is 20.8 when rounded to one decimal place.