Answer:
![4.5 cm=L2](https://tex.z-dn.net/?f=4.5%20cm%3DL2)
Step-by-step explanation:
This problem can be solved using the pythagorian theoreme:
![H=\sqrt{L1^{2}+L2^{2} }](https://tex.z-dn.net/?f=H%3D%5Csqrt%7BL1%5E%7B2%7D%2BL2%5E%7B2%7D%20%20%7D)
Where:
![H=6 cm](https://tex.z-dn.net/?f=H%3D6%20cm)
![L1=4 cm](https://tex.z-dn.net/?f=L1%3D4%20cm)
![L2=?](https://tex.z-dn.net/?f=L2%3D%3F)
We isolate our incognita an we get:
![\sqrt{H^{2}-L1^{2}} =L2](https://tex.z-dn.net/?f=%5Csqrt%7BH%5E%7B2%7D-L1%5E%7B2%7D%7D%20%3DL2)
We supplant with the given data:
![\sqrt{(6cm)^{2}-(4cm)^{2}} =L2](https://tex.z-dn.net/?f=%5Csqrt%7B%286cm%29%5E%7B2%7D-%284cm%29%5E%7B2%7D%7D%20%3DL2)
![\sqrt{36cm^{2}-16cm^{2}} =L2](https://tex.z-dn.net/?f=%5Csqrt%7B36cm%5E%7B2%7D-16cm%5E%7B2%7D%7D%20%3DL2)
![\sqrt{36cm^{2}-16cm^{2}} =L2](https://tex.z-dn.net/?f=%5Csqrt%7B36cm%5E%7B2%7D-16cm%5E%7B2%7D%7D%20%3DL2)
![\sqrt{20cm^{2}} =L2](https://tex.z-dn.net/?f=%5Csqrt%7B20cm%5E%7B2%7D%7D%20%3DL2)
![4.5 cm=L2](https://tex.z-dn.net/?f=4.5%20cm%3DL2)
Answer: 70% is shaded. 7 are shaded and there is a total of 10. then you divide the answer would be 0.7 which is the same as 70%
Step-by-step explanation: