2 years ago

A rectangle has a perimeter of 18. The height of the rectangle is 4 cm. What is the area of the rectangle?

2 answers:

6 0

20 cm, I think
The perimeter is 18 and the height is 4 cm.

4 cm x 2 = 8
We are multiplying it by two because there are two side in a rectangle that are the same height

18 - 8 = 10
We are finding the length of the rectangle
10\2 = 5
The length of the rectangle is 5

5 x 4 = 20
That is the area

Snezhnost [94]2 years ago

5 0

Answer:

Step-by-step explanation:

Perimeter of rectangle= 2l+2h so 2l+2(4)=18. SO 2l=10. l=5

Area=bh

(5)(4)=20cm

You might be interested in

Ms.Henderson is using triangles in her graphic design project.The triangles are isosceles.One had a base of 4 inches and legs of

tester [92]

If the two triangles are similar you can use a proportion to solve for the length of the legs.
$\frac{2}{4}$ = $\frac{x}{9}$
Now, you would cross multiply to get
4x=18
Now, you simplify that using the division property of equality.
You end up with
x=4.5
Therefore, the legs of the triangle with a base of 9 inches will each be 4.5 units long.

4 0

2 years ago

The events x and y have a correlation coefficient of r= 0.02. What is the relationship between x and y? A) The events have a str

kkurt [141]

Answer:

Step-by-step explanation:

if r=1 perfect positive correlation.

if r=-1 ,perfect negative correlation.

r=0 ,no correlation.

r=.02 ,so D

6 0

2 years ago