HELP Help Please

Mathematics

1 answer:

Alexandra [31]3 years ago

6 0

Answer:

l × b is the correct answer for this question

You might be interested in

If backpack is discounted 10% ib sale for $37.80 what is the original price

taurus [48]

the answer is $34. 36 if I understood your question correctly.

8 0

3 years ago

Determine the place value of the digit 2 in the following whole number: 3,204,000

andrey2020 [161]

The hundred thousand place

7 0

3 years ago

Read 2 more answers

In a circle, area and circumference can be found using the formulas A=(pi)r^2 and C=2(pi)r, respectively, Write a formula for A

AURORKA [14]

Answer:

$A = \dfrac{C^2}{4\pi}$

Step-by-step explanation:

Given that

Area of a circle $A=\pi r^2$

Circumference of the circle $C = 2 \pi r$

Let us re-write the equation of area of circle:

$A=\pi r^2$

$A = \pi \times r \times r$

Multiplying and dividing with 2:

$A = \dfrac{2\pi r}{2} \times r\\\text{Putting }2\pi r = C:\\\Rightarrow A = \dfrac{C}{2} \times r\\\text{Multiplying and dividing by } 2\pi:\\\Rightarrow A = \dfrac{C}{2} \times \dfrac{2\pi r}{2\pi}\\\text{Putting }2\pi r = C:\\\Rightarrow A = \dfrac{C \times C}{4 \pi}\\\Rightarrow A = \dfrac{C^2}{4 \pi}$