Question

Find the value of a to the nearest tenth.

Answer 1

Hello

See attachment.

1. Pythagore :

CB² = AC² + AB²

CB² = 6² + 5²

CB² = 61

CB = √61ù

2. Pythagore :

CB = DE = √61

CE² = CD² + DE²

DC² = CE² - DE²

DC² = 8² - (√61)²

DC² = 64 - 61

DC² = 3

DC = √3

3. Conclusion

x = √3