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san4es73 [151]
3 years ago
15

10 POINTS! HELP!!

Mathematics
2 answers:
Mekhanik [1.2K]3 years ago
8 0

Answer:

B

Step-by-step explanation:

The perimeter is the sum of the 3 sides. thus

perimeter = 12 + 12 + 9.7 = 33.7 mm

The area (A) of a triangle is calculated as

A = 0.5 × base × perpendicular height

Here base = 12 and height = 9

A = 0.5 × 12 × 9 = 6 × 9 = 54 mm²

Ivahew [28]3 years ago
6 0

Answer:

B is correct.

Step-by-step explanation:

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Angle 1 is congruent to angles 3, 5, and/or 7

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Angles 1 and 3, 2 and 4, 5 and 7, and angles 6 and 8 are congruent because they are vertical angles. They have the same vertex. Not all of these are congruent to each other if this doesn’t make sense. It’s only 1 is congruent to 3, 2 congruent to 4, etc.

Then you have your corresponding angles. These are ones like angles 2 and 6, then 1 and 5. You can also have 8 and 4, or 7 and 3 as corresponding angles

Transversal angles are different. This would be like angles 3 and 4, or 1 and 2. They are not always congruent. The only time they will be congruent is if they are both 90°. Transversal angles are essentially supplementary angles on the transversal line (the line that intersects through the set of parallel lines)












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3 years ago
The fence is 106 meters long. Each section of fence is 3 meters long. How many sections were needed to complete the fence?
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Step-by-step explanation:

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4 years ago
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