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alekssr [168]
3 years ago
5

No links, will give brainliest

Mathematics
1 answer:
nadezda [96]3 years ago
6 0

The area of a parallelogram is base x height, or A = bh.

a) A = 6 x 10, so A = 60 cm²

b) A = 15 x 8, so A = 120 cm²

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Answer/Step-by-step explanation:

5. 21x + 4 = 22x - 2 (corresponding angles)

Collect like terms

21x - 22x = -4 - 2

-x = -6

divide both sides by -1

x = 6

6. (x + 72) + (x + 132) = 180 (linear pair)

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Add like terms

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7. 90 = 22x + 2 (vertical angles)

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x = 4

8. 12x + 10 = 13x + 3 (vertical angles)

Collect like terms

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x = 7

9. 17x = 16x + 5 (alternate exterior angles)

17x - 16x = 5

x = 5

✔️17x

Plug in the value of x

17(5) = 85°

10. 21x - 6 = 20x (corresponding angles)

Add like terms

21x - 20x = 6

x = 6

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20(6) = 120°

3 0
3 years ago
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