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klio [65]
3 years ago
12

the radius of the circular lensof a magnifying glass is 4 centimeters whatis the area in square centimeters of the glass

Mathematics
1 answer:
anygoal [31]3 years ago
5 0
The area of a circle is pi times radius^2

So if you use 3.14 x 16, it gives you approximately 50.264
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Can someone please answer these 2 questions.
Volgvan

Answer:

The cross section of sphere is circle

Area of cross section = 25 in²

Step-by-step explanation:

From the figure we can see a cylinder with height 8 inches and volume 200 π in³.

<u>The cross section of the cylinder looks like a circle.</u>

<u>To find the area of cross section</u>

Volume of cylinder = Cross section area * Height

200 = cross section area * 8

cross section area = 200/8

 = 25 in²

Area of cross section = 25 in²

7 0
3 years ago
The sales tax in New York is 8.25%. About how much will a $65.95 pair of shoes cost, including sales tax?
SpyIntel [72]
Not exactly sure but I think it's 74.2
6 0
3 years ago
Can you simplify a chain of if then statements? if so what do we call it?
lawyer [7]

A conditional statement (also called an If-Then Statement) is a statement with a hypothesis followed by a conclusion. ... The hypothesis is the first, or “if,” part of a conditional statement. The conclusion is the second, or “then,” part of a conditional statement.

6 0
3 years ago
The area of the above polygon is ?<br>the answer is not 44
vitfil [10]
Check the picture below.

you really have two rectangles, a 6x10 and a 6x5, and surely you know what those areas are, so sum them up, and that's the area of the polygon.

6 0
3 years ago
In circle O, m∠R = 30.8°. Find m∠NOQ.
nordsb [41]

Given:

In circle O, m∠R = 30.8°.

To find:

The m∠NOQ

Solution:

Central angle theorem: According to this theorem, the central angle is always twice of subtended angle on the same arc.

Angle NOQ and angle NRQ are on the same arc but ∠NOQ is the central angle and ∠NRQ is the subtended angle on the arc NQ.

Using central angle theorem, we get

m\angle NOQ=2\times m\angle NRQ

m\angle NOQ=2\times m\angle R

m\angle NOQ=2\times 30.8^\circ

m\angle NOQ=61.6^\circ

Therefore, m\angle NOQ=61.6^\circ.

4 0
3 years ago
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