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Serhud [2]
3 years ago
5

Find the radius r of C.

Mathematics
2 answers:
garik1379 [7]3 years ago
7 0

Answer:

r=10.5

Step-by-step explanation:

  • (r+7)^2=r^2+14^2
  • r^2+14r^2+49=r^2+196
  • 14r=196-49
  • 14r=147
  • r=147/14
  • r=10.5

≿━━━༺❀༻━━━≾

hope it helps..

have a great day!!

Luden [163]3 years ago
3 0

\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}

Actually Welcome to the concept of Pythagoras theorem.

so, we get as,

==> (14)^2 + r^2 = (7+r) ^2

==> 196 + r^2 = 49 + 14r + r^2

=> cancelling r^2 from both sides, we get as,

==> 196 = 49 + 14r

==> 14r = 196-49

==> 14r = 147

==> r = 147/14 = 10.5

==> r = 10.5 units,

hence, r = 10.5 units

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