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damaskus [11]
2 years ago
8

A pentagon has angle measures of 12x°, 7x°, 16x°, 9xº, and 10x°. Find the value of x.

Mathematics
1 answer:
8_murik_8 [283]2 years ago
8 0

Answer:

10

Step-by-step explanation:

The sum of all the interior angles of a pentagon is 540°

So...

540 = 12x + 7x + 16x+ 9x + 10x

Combine like terms:

540 = 12x + 7x + 16x+ 9x + 10x

540 = 54x

Divide by 54 on both sides:

540 = 54x

/54     /54

10 = x

Hope this helps :)

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Answer:

  BC = 5

Step-by-step explanation:

Of course, this geometry program can tell you the length of BC.

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If you follow directions, you get a right triangle BCF that has leg lengths 3 and 4. The Pythagorean theorem then tells you the length of hypotenuse BC is ...

  BF = 4 -1 = 3

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2 years ago
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Y_Kistochka [10]

Answer:

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