5.250
To change a fraction to a decimal fraction divide the numerator by the denominator.
that is 21 ÷ 4 = 5.250 ( to 3 decimal places )
Answer:
<h2>L.A. = 384 cm²</h2><h2>S.A. = 640 cm²</h2>
Step-by-step explanation:
Lateral Area:
We have four congruent triangles with base b = 16cm and height h = 12cm.
The formula of an area of a traingle:

Substitute:


Surface Area:

In the base we have the square with side s = 16cm. The formula of an area of a square:

Substitute:


It is the first graph. the equation can be estimated out to be close to 48,000 but still more than it. the line starts up above 48,000 so that is the most logical answer
A yard is equal to 3 feet. So knowing this we multiply 5280 which is how many feet are in a mile by 2.5 that is the miles we will take into consideration.
5280 x 2.5= 13,200
Now this value we divide it by 3 which is how long a yard is in terms of ft measurement.