152k views
2 votes
Radius question

* answers listed on pic but I just need a step by step explanation *

Radius question * answers listed on pic but I just need a step by step explanation-example-1
User Isaac B
by
8.2k points

2 Answers

6 votes

Explanation:

Let A(x) be the area function of given rectangle.

Radius of circle = 7x

Therefore, length of rectangle = 14x

Width of rectangle = 7x


\therefore \: A(x) =l* w \\ = 14x * {(7x)} \\ =98x^2 \\ \huge \red{ \boxed{ \therefore \: A(x) =98 {x}^(2) }}

Let P(x) be the Perimeter function of given rectangle.


P(x) =2(l + w) \\= 2(14x + 7x)\\</p><p>=2* 21x\\</p><p>= 42x\\</p><p>\huge \red{ \boxed{ \therefore \:P(x)= 42x}}

User Logbasex
by
8.1k points
5 votes

Good morning ☕️

Answer:

A. A(x) = 98x²

B. P(x) = 42x

Explanation:

Consider L the length of the rectangle and w its width

then according to the figure L = 7x + 7x = 14x and w = 7x

_________________________

A. A(x) = L × w = 14x × 7x = 98x²

_________________________

B. P(x) = 2×(L + w) = 2×(14x + 7x) = 2×(21x) = 42x

___________________________________

:)

User BabbarTushar
by
7.9k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories