Answer:
2.83 cm.
Explanation:
We have been given that the hypotenuse of a 45-45-90 triangle measures 4 cm. We are asked to find the length of one leg of triangle.
We know that hypotenuse of 45-45-90 triangle is
and each leg is x units.
We are told that hypotenuse of triangle is 4 cm, so we can set an equation as:
![x√(2)=4](https://img.qammunity.org/2019/formulas/mathematics/middle-school/e25g8f8t240vqzamns1u05b9603jkt6v2e.png)
![(x√(2))/(√(2))=(4)/(√(2))](https://img.qammunity.org/2019/formulas/mathematics/middle-school/2r00jj0936htapw2vwy7pnkx46hfbct58t.png)
![x=2.82842712474](https://img.qammunity.org/2019/formulas/mathematics/middle-school/gc3u3h235ml0r7odj020t7hzmw2adyj8pd.png)
![x\approx 2.83](https://img.qammunity.org/2019/formulas/mathematics/middle-school/x63cey56pa5776h1lkhcuftollfkynjg1n.png)
Therefore, the length of each leg of triangle is approximately 2.83 cm.