How to round 0.125 to the nearest whole

1 answer:

8 0

In the number 0.125, there is:
0 in the ones place,
1 in the tenths place,
2 in the hundredths place, and
5 in the thousandths place.

We want to round to the hundredths place, which is 2.
To do this we must look to the next digit.
If it's less than 5, we round down.
If it's more than 5, we round up.

The next digit is 5, though! So what do we do then?
Well, we would look to the next digit again<span> and decide from that.</span>
There isn't really a next digit to decide from, though, is there?

<span>In that case, we just round up.

and we get 0.13</span>

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Alex is planning to surround his pool ABCD with a single line of tiles. How many units of tile will he need to surround his pool

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Question:

Alex is planning to surround his pool ABCD with a single line of tiles. How many units of tile will he need to surround his pool? Round your answer to the nearest hundredth.

A coordinate plane with quadrilateral ABCD at A 0,3, B 2,4, C 4,0, and D 2,-1. Angles A and C are right angles, the length of segment AB is 2 and 24 hundredths units, and the length of diagonal BD is 5 units.

8.96

10.48

13.42

20.42

Answer:

Alex will need 13.42 units of tile to surround his pool.

Step-by-step explanation:

To find the units of tiles that is needed to surround the pool ABCD with single line of tiles is equal to the perimeter of the rectangle

Perimeter of the rectangle = 2 length+2 width

In the figure, the width is given as 2.24 units and the diagonal is 5 units.

So we can find the length using Pythagorean theorem

$a^2 =b^2+c^2$