Find the surface area.

Mathematics

1 answer:

Dmitriy789 [7]3 years ago

4 0

Answer:

Step-by-step explanation:

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99 X 99 X 99 / 9 - 99 /99 PLEASE EXPLAIN ;)

charle [14.2K]

Answer:

107810

Step-by-step explanation:

You can use the order of operations! So we start with 99^3/9. That is 99^2*11. So now let’s do 99/99, it’s 1. So 99^2*11 is 107811, so the answer is 107810.

8 0

4 years ago

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Prove that the circumcenter of a triangle is equidistant from its vertices.

ruslelena [56]

Answer:

Step-by-step explanation:

The circumcenter is equidistant from the three vertices of the triangle. From the figure shown, we will prove DA = DB = DC. 2) DA = DB, DC = DB(If a point is on the perp. bisector of a segment, it is equidistant from each endpoint of the segment.)

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3 years ago

Durante la settimana visiteranno il parco 72 bambini.per ogni bambino viene preparata una scatola rettangolare,in cui sistemare

Mnenie [13.5K]

Answer:

$4,320\ cm$ or $43.2\ m$

Step-by-step explanation:

The question in English is

During the week 72 children will visit the park. For each child is prepared a rectangular box, in which to arrange what will be collected during the visit. Each box is 18 cm long and 12 cm wide. How long is the strip of cardboard that is used to make the edge of all boxes.

Let

x ----> the length of the box

y -----> the width of the box

we know that

The perimeter of the box is equal to

$P=2(x+y)$