The length of AC to one decimal place in the trapezium is 18.1 cm
Calculations and Parameters
If we use Pythagoras theorem,
c² = a² + b²
We would draw a line from point B to the line AD and call it line BX.
BX ║ CD
This computes as:
- 16² - 7² = BX²
- 256 - 49 = BX²
- BX² = 207
- BX = √207
- BX = 14.3874945699
- BX = 14.4 cm
Next step:
- 11² + 14.4² = AC²
- 121 + 207.36 = AC²
- AC = √328.36
- AC = 18.120706388
- AC = 18.1 cm
Read more about trapeziums here:
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