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ale4655 [162]
3 years ago
12

A square has a side length of 7 centimeters. A circle has a diameter of 7 centimeters. What is true about the areas of the two f

igures?
Mathematics
2 answers:
a_sh-v [17]3 years ago
7 0

Answer:

Area of Square having side length equal to 7cm

    =(7)²

  =49 cm²

because ,Area of square=Side × Side

⇒Area of Circle having diameter 7 cm will be

      \text{radius}=\frac{\text{Diameter}}{2}\\\\\text{Area of circle}=\pi \times r^2\\\\=\frac{22}{7}\times (\frac{7}{2})^2\\\\=\frac{22\times 49}{7\times 4}\\\\=\frac{77}{2}\\\\=38.5 \text{cm}^2

  Area of square is larger than Area of circle by

    =49-38.5

   =10.5 cm²

Stels [109]3 years ago
6 0

Answer:  The area of the circle will be eleven-fourteenth of the area of square.


Step-by-step explanation:  Given that a square has a side of length 7 cm and a circle has a diameter of 7 cm. We need to find the statement which is true about the areas of these two figures.

The area of the square will be

S_a=7^2=49~\textup{cm}^2.

And, the area of the circle will be

C_a=\pi r^2=\pi \times \left(\dfrac{7}{2}\right)^2=\dfrac{\pi}{4}\times 49=\dfrac{22}{7\times 4}\times 49\\\\\Rightarrow C_a=\dfrac{11}{14}\times S_a.

Thus, the area of the circle will be eleven-fourteenth of the areq of the square.


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Mrs. Kim is teaching a 5th grade class. She is standing 48 feet in front of Lester. Carey is sitting to Lester's right. If Carey
victus00 [196]

Lester and Carey are 14 feet apart

Step-by-step explanation:

Mrs. Kim is teaching a 5th grade class

  • She is standing 48 feet in front of Lester
  • Carey is sitting to Lester's right
  • Carey and Mrs. Kim are 50 feet apart

We need to find how far apart Lester and Carey

Look to the attached figure

The positions of Mrs. Kim, Lester, and Carey formed a right triangle

∵ The distance between Mrs. Kim and Carey is 50 feet

∴ The length of the hypotenuse of the Δ = 50 feet

∵ The distance between Mrs. Kim and Lester is 48 feet

∴ The length of one leg of the Δ = 48 feet

The formula of length of the sides of the right Δ is:

(hypotenuse)^{2}=(leg_{1})^{2}+(leg_{2})^{2}

Substitute the length of the hypotenuse and the length of the given leg in the formula above

∵ (50)² = (48)² + (leg)²

∴ 2500 = 2304 + (leg)²

- Subtract 2304 from both sides

∴ 196 = (leg)²

- Take square for both sides

∴ 14 = leg

∵ This leg represents the distance between Lester and Carey

∴ The distance between Lester and Carey = 14 feet

Lester and Carey are 14 feet apart

Learn more:

You can learn more about the right triangle in brainly.com/question/1238144

#LearnwithBrainly

8 0
3 years ago
express each of the following as product of its prime factors, giving your answer in expanded form. a) 24. b) 63. c) 84. d) 150​
Alborosie
To answer this question, you can use a factor tree, or the table thing (I forgot what it’s called.)
You divide the number by one of its PRIME factors, until there is only one left. The numbers you divided it by are written as shown.
Hope this helps. :)
3 0
3 years ago
X = In e10. What is x?
OlgaM077 [116]
X= 5 and have a nice day
7 0
3 years ago
The sum of two numbers is 3, and twice the larger number is 36 more than three times the smaller number. Find the numbers.
jok3333 [9.3K]

Answer:

x = -6

y = 9

Step-by-step explanation:

The sum of two numbers is 3

x + y = 3

twice the larger number is 36 more than three times the smaller number

2y = 3x + 36

Divide both sides by 2

y = 1.5x + 18

substitute for y in the first equation

x + (1.5x + 18) = 3

2.5x = -15

divide both sides by 2.5

x = -6

Substitute for x in the first equation

-6 + y = 3

y = 9

8 0
2 years ago
The equation of line v is y=9x+1. Line w is perpendicular to line v and passes through (3, – 2). What is the equation of line w?
Anna11 [10]

Answer:

Step-by-step explanation:

Remember the general form of a linear equartion: y=mx + b, where m is the slope and b is the y-intercept (the value of y when x = 0).

The equation of line v (y=9x+1) has a slope of 9. A perpendicular line with have a slope equal to the negative inverse of the reference line. So the line we want will have a slope of -(1/9). That gives us y = -(1/9)x + b. Any vale of b will produce a line that is perpendicular. But we want a line that goes through point (3,-2). All we need to do is find a value for b that will make that wish come true.

Use the point (3,-2) in y = -(1/9)x + b and solve for b:

y = -(1/9)x + b

-2 = -(1/9)*(3) + b

-2 = -(1/3) + b

b = - 1 2/3, or -(5/3)

The equation is y = -(1/9)x + - (5/3)

7 0
2 years ago
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