By definition, the area of a parallelogram is given by:
A = (1/2) * (b) * (h)
Where,
b: base of the parallelogram
h: height of the parallelogram
Substituting values we have:
A = (1/2) * (3.1 + 3.3) * (4.1)
A = 13.12 cm ^ 2
Answer:
The area of one piece of fabric is:
A = 13.12 cm ^ 2
Answer: 8/9 or .8
Advice for the future, use math w a y next time for stuff like this.
Until we know what it is, let's call the number ' M ', for 'Mystery number'.
The number . . . . M
The triple of the number . . . 3M
One third of the number . . . . M/3
48 added to one third of the number. . . . M/3 + 48 .
You said that 48 added to one third of the number makes triple the number,
so I can write
<u>M/3 + 48 = 3M </u>
and the rest is easy.
Multiply each side by 3 : M + 144 = 9M
Subtract M from each side: 144 = 8M
Divide each side by 8 : <em>18 = M</em>
<u>Check:</u>
Is M/3 + 48 equal to 3M ?
(18/3) + 48 ? = ? 3(18)
6 + 48 ? = ? 54
54 = 54
yay !
Answer:
8
Step-by-step explanation:
Using the Heron's formula we can find that the total area of the triangle is 84 inches.
Then, to find the height of the triangle, you have to multiply the area by 2 since the formula for the area of a triangle is (h*b)/2
Now, when we multiply 84 and 2 we get 168, so you have to divide 168 by 21 to find 8.