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Yuri [45]
3 years ago
9

What’s the area of this polygon answer ASAP my teacher died

Mathematics
2 answers:
Anastasy [175]3 years ago
8 0

Answer:

Break it into 2 sections: 18 by 3 and 6 by 20

area = 54 + 120

= 174 (answer is A.)

Step-by-step explanation:

elena-s [515]3 years ago
6 0

9514 1404 393

Answer:

  A.  174

Step-by-step explanation:

<em>Use your number sense</em>. The area can be no larger than the rectangle that is 20 high and 9 wide. That rectangle's area is ...

  A = LW = (20)(9) = 180

The only answer choice <em>smaller than 180</em> is ...

  A.  174 . . . . . square units

__

If you want to compute it exactly, you can make note of the size of the empty space at the upper left corner. That space is 20-18 = 2 units high and 9-6 = 3 units wide. Its area is A = LW = (3)(2) = 6 square units. When that empty space is subtracted from the overall rectangle area, the result is ...

  180 square units - 6 square units = 174 square units.

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