Answer:
Perimeter = 42meters
Area = 98m^2
Step-by-step explanation:
Given
Width w = 7
Length L = 2w
= 2 x 7 = 14
Perimeter = 2(L + W)
P = 2 (14 + 7)
P = 2 x 21
P = 42meters
Area of a rectangle = L x W
Area = 14 x 7
= 98m^2
Using the old equation, a squared + b squared = c squared. C would be your hypotenuse
so yes it is a correct right triangle
Answer:
Step-by-step explanation:
To add these vectors together, we have to "glue" them together.
Let's call the vector with the length of 2 <em>A </em>and the one with length 4 <em>B.</em>
Imagine you can grab vector A with your hands and move it to the end of B (it would look like the image that's annexed)
Now imagine that we made a triangle from that, what we want to know is the hypotenuse of that triangle!
We know that when we want to find the hypotenuse of a triangle, we can use Pythagoras theorem:
Let's plug in the known values (the length of the vectors) and solve this
Good luck!
Answer: 360
Step-by-step explanation:
18x20=360
So the ^ symbol represents a square, or cube.