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Vikentia [17]
3 years ago
12

Help??? It’s pretty complicated, well for me.

Mathematics
1 answer:
masha68 [24]3 years ago
8 0

Answer:

The first box is 10.2

The second box is 15.

The last box is 76.

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What is the area of this triangle?
Ket [755]

Answer:

a

Step-by-step explanation:

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A = \frac{1}{2} × 9 × 12 = \frac{1}{2} × 108 = 54 cm²

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Step-by-step explanation:

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3 years ago
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Vsevolod [243]

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4 0
4 years ago
1^2 + 2^2 + 3^2 +.... + 28^2 + 29^2 + 30^2 = ......<br> Find the value <br> Thank you!
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