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marin [14]
3 years ago
7

Need this ASAP will give Brainliest.

Mathematics
1 answer:
valkas [14]3 years ago
3 0

Step-by-step explanation:

39.4 cm2. rounded from 38.5

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If someone could help me with this question pls help :) if you thank you!:)
Kipish [7]

Answer:

circumference of circle = 2π×r

here r = 7

so 2 ×22÷7 × 7

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6 0
3 years ago
Someone help me with this please
krok68 [10]

Answer:

1.perpendicular

2.parallel

Step-by-step explanation:

3.perpendicular

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4 0
2 years ago
Read 2 more answers
(a) Draw in radii OA, OB, OC and OD. Then, explain why OAB must
lions [1.4K]

Answer:

In the given circle, segments OA, OB, OC and OD are radius of the circle.

In other words, all those segments are congruent.

From that we can deduct that triangles OAB and OCD are isosceles triangles, because all segments are equal. That makes those triangles congruent, because they have the same sides.

From the congruence we can deduct that all corresponding internal angles inside those triangles are actually congruent, that's why angle OAB and ODC must be congruent.

Also, angles DOC and BOA are also congruent, which means their subtended arcs are also congruent, because they have the same radius, so mAB = mCD.

7 0
3 years ago
Write a formula that converts weeks to days. d =
Stolb23 [73]
Days= weeks × 7
d = w × 7
7 0
3 years ago
Write an equation of the line that passes through the given point and is perpendicular to the given line (-6,-4); y=1/3x+1
slamgirl [31]

Answer:

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Step-by-step explanation

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