Hi
perimeter of rectangle is : 2 length+2 width .
to progress in math, you must practice.
So , I let you do the first one which is the esaiest.
48 ) V147+ V147 + V108+V108 = 2V147 +2V108 = 2 ( V147+V108)
Answer:
you have to have a fighting spirit
Step-by-step explanation:
Answer:
157.1
Step-by-step explanation:
If you split the blue shape like in the picture, it shows that there is 1 large semicircle and 2 smaller ones.
The area of a semicircle is (pi×radius²)÷2
First, you would find out the area of the large semicircle by substituting in the numbers:
(3.142×10²)÷2=157.1
Then you would find out the area of the smaller semicircle:
The diameter of the semicircle is 10 so to find the radius you would half it.
(3.142×5²)÷2=39.275
To find the area of the whole shape, you would have to take away 39.275 and then add it back on so the answer would be 157.1
Hope this helps :)
Answer:
x and y
Step-by-step explanation:
Remote interior angles are angles that don't share a vertex or corner of a triangle with the exterior angle.
Answer:
Ecological validity
Step-by-step explanation:
Well, to complete the sentence, first we need to be aware of types of validity of experiments such as criterion validity, ecological validity, content validity
, factorial validity, etc.
In this particular example, it is stated that the results of an experiment can be applied to real-world conditions. Therefore, the experiment is said to have ecological validity considering the fact that results applied to real-world conditions.
