3 years ago

The radius of a circular lens of a magnifying glass is 4 centimeters. What is the area in square centimeters of the glass

1 answer:

7 0

You said that the radius is 4cm.

We can use the formula for the area of a circle: π x r²

So π x (4)²

is π x 16

= 16π

= 50.3 cm² (aprox).

You might be interested in

Evaluate 0.65 x 280 - 2/9 of 513

kondor19780726 [428]

Answer:

181.99956681

Step-by-step explanation:

Mark as brainliest

7 0

3 years ago

WILL MARK BRAINLIEST !! HELP ASAP

ZanzabumX [31]

What's the point of brainliest .

4 0

3 years ago

What is the decimal representation of 2/10 ?

Marina CMI [18]

2/10 basically means "2 divided by 10".

10 / 2 = .2

7 0

3 years ago

Read 2 more answers

5 1/3 + x = 2 1/2. Use least common denominator or easiest common denominator. Please work out

julia-pushkina [17]

Answer:

The answer is x = -17/6.

Step-by-step explanation:

Given:

5 1/3 + x = 2 1/2 . Using least common denominator.

Now, to solve the equation:

$5\frac{1}{3}+x=2\frac{1}{2}$

$=\frac{16}{3} +x=\frac{5}{2}$

Subtracting both sides from 16/3 we get:

$x=\frac{5}{2}- \frac{16}{3}$

Now, the least common denominator of 2 and 3 is 6.

So, we using this we calculate:

$x=\frac{5\times 3-16\times 2}{6}$

$x=\frac{15-32}{6}$

$x=\frac{-17}{6}$

Therefore, the answer is x = -17/6.

7 0

3 years ago

In order to answer the question correctly, please use the following image below:

Marta_Voda [28]

Answer:

70°

Step-by-step explanation:

Minor angle at the centre:

360 - 250 = 110

Two tangents make an angle of 90° each

90 + 90 + 110 + x = 360

x = 360 - 290

x = 70°

5 0

2 years ago