19. Find m a.) 63 b.) 117 c.) 73 d.) 107

Mathematics

1 answer:

Kay [80]3 years ago

6 0

For this case we have a pentagon shown, that is, it has 5 sides. By definition, the sum of the internal angles of a pentagon is given by:

540 degrees

So:

$96 + 118 + 104 + x + 115 = 540\\433 + x = 540\\x = 540-433\\x = 107$

Now we have to:

$A + x = 180\\A = 180-x\\A = 180-107\\A = 73$

Answer:

Option C

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