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3 years ago

How do i find the length of a square when the perimeter is 54cm

Mathematics

1 answer:

kozerog [31]3 years ago

8 0

Answer:

Divide the perimeter by four.

Step-by-step explanation:

Because it is a square, all four sides should be the same length. If all sides have to be equal, you divide your perimeter by the amount of sides the shape has.

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Tom baked 14 cookies with 2 scoops of flour with 11 scoops of flour how many cookies can tom bake

vodomira [7]

Answer:77

Step-by-step explanation:

4 0

3 years ago

if you shop in chicago, Illinois, the state sales tax is 9 1/4% what is your total cost when you purchase a $5.00 map of the cit

NNADVOKAT [17]

1.) 1 ÷ 4 =0.25 + 9= 9.25

2.) 9.25 + 5.00 = 14.25

7 0

3 years ago

Points J, K and L are distinct points, and JK = KL. Which of these statements must be true?

Hoochie [10]

* J,K,&L are coplanar

* K is the midpoint of JL

* J,K,&L are collinear

* Jk=KL

4 0

3 years ago

If the coordinates of the endpoints of a diameter of the circle are known, the equation of a circle can be found. First, find

Evgesh-ka [11]

Answer:

The equation of the circle is $(x+3)^2+(y-5)^2 = 17$

Step-by-step explanation:

The complete question is

If the coordinates of the endpoints of a diameter of the circle are known, the equation of a circle can be found. First, find the midpoint of the diameter, which is the center of the circle. Then find the radius, which is the distance from the center to either endpoint of the diameter. Finally use the center-radius form to find the equation.

Find the center-radius form of the circle having the points (1,4) and (-7,6) as the endpoints of a diameter.

Consider that, if both points are the endpoints of a diameter, the center of the circle is the point that is exactly in the middle of the two points (that is, the point whose distance to each point is equal). Given points (a,b) and (c,d), by using the distance formula, you can check that the middle point is the average of the coordinates. Hence, the center of the circle is given by

$(\frac{1-7}{2}, \frac{4+6}{2}) = (-3,5)$ .

We will find the radius. Recall that the radius of the circle is the distance from one point of the circle to the center. Recall that the distance between points (a,b) and (c,d) is given by $\sqrt[]{(a-c)^2+(b-d)^2}$ . So, let us use (1,4) to calculate the radius.

$r = \sqrt[]{(1-(-3))^2+(4-5)^2} = \sqrt[]{17}$ .

REcall that given a point $(x_0,y_0)$ . The equation of a circle centered at the point $(x_0,y_0)$ is

$(x-x_0)^2+(y-y_0)^2 = r^2$

In our case, $(x_0,y_0)=(-3,5)$ and $r=\sqrt[]{17}$ . Then, the equation is

$(x-(-3))^2+(y-5)^2 = (x+3)^2+(y-5)^2 = 17$

4 0

3 years ago

The formula A=6s² gives the suface area A of a cube with a side length s. What is the suface area of a cube that has a side leng

Salsk061 [2.6K]

Answer:

150 square inches.

Step-by-step explanation:

Since the surface area of a cube is 6 times the square of the side length of the cube, then that means the surface area of a cube that has a side length of 5 has a surface area of 6 x 5 x 5. 5 times 5 = 25, and 25 x 6 = 150

3 0

2 years ago