carlosg12 carlosg12
  • 15-01-2021
  • Mathematics
contestada

Some help please
Thank you

Some help please Thank you class=

Respuesta :

adedamolaogunlela
adedamolaogunlela adedamolaogunlela
  • 18-01-2021

Answer:

Step-by-step explanation:

Using pythagoras theorem

AB²+BD²=AD²

5²+BD²=10²

25+BD²=100

BD²=100-25

BD²=75

BD=√75

BD=8.66

For triangle BDC,

Using pythagoras theorem

x²=DC²+BD²

x²=4²+75

x²= 16+75

x²=91

x=9.54

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