Answer:
Yes
Step-by-step explanation:
You need the formula to solve area.
You must plug in / subsitute numbers in order to find the area.
Answer:
D) None of the above
Step-by-step explanation:
This is because all of the shapes above are examples of 3D shapes. A 3D shape would have the dimensions of length and width and height. However a 2D shape would only have the dimensions of length and width.
An example of a 2D shape is a rectangle. as it consists of a length and a width, but does not have a height.
On the other hand a £D shape such as a cube would have a length, width and a height.
B :81 EXPLANATION
The angle with the greatest measure corresponds to the longest:
Since we know the three side lengths, we use the cosine rule to obtain;
{a}^{2} = {b}^{2} + {c}^{2} - 2bc \cos(A)
where a=21, b=18 and c=14
{21}^{2} = {18}^{2} + {14}^{2} - 2 \times 18 \times 14\cos(A)
44 1= 324+ 196 - 504\cos(A)
44 1= 520 - 504\cos(A)
44 1 - 520 = - 504\cos(A)
- 79 = - 504\cos(A)
\cos(A) = 0.1567
A = \cos ^{ - 1} (0.1567) = 80.98 \degree
I think the answer would be three because if you multiply all of the numbers together you get 30.
Answer:
1895.22 feet^2
Step-by-step explanation:
So starting off we will find the area of the hexagon.
The formula is complicated so I won’t write it.
The area is 509.22 feet^2.
Now for the triangles.
So the base is 14 feet and the height is 33 feet.
After multiplying them and dividing them by two I got 231 feet^2.
Then multiplying 231 by 6 I got 1386 feet^2.
So adding up 1386 and 509.22 I got 1895.22 feet^2.
