kenzie011
kenzie011 kenzie011
  • 01-03-2017
  • Mathematics
contestada

⛔️ 15 points ⛔️ thank you sm to whoever answers this!

15 points thank you sm to whoever answers this class=

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yoloswaggs51
yoloswaggs51 yoloswaggs51
  • 01-03-2017
the entire bottom is 21... but the rectangle part (top) is 11
so 21-11=10

10 is the total of the base for both triangles
which means the base for 1 triangle is 5

Then us Pythagorean therom which is A^2+B^2=C^2
But we're solving For B^2

so it's C^2-A^2=B^2

13^2=169
5^2=25

169-25=144

√(144)= 12

x=12

hope that makes sense
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