For both part A and part B, the cross-section would be a square.
For part c, the reasons the shapes are the same is the 3-D figure of a cube has 6 faces that are all squares. Since every face is a square, you cannot cut a cross-section that is any shape but a square. Cross-sections in 3-D prisms can reflect the face they are nearest to, so with every face being identical on a cube, the cross sections are also identical.
I hope this helps! :)
Answer:
C. 45 degree angle
Step-by-step explanation:
let AB be the height of the wall and CD be the height of boy
with BC as distance between them.
we have AE = AB-BE = 3.64-1.54 = 2.1m
and ED = BC = 2.1m
in triangle AED, we have
tanФ = P/B = 2.1/2.1
tanФ = 1
∴ Ф = 45°
Hence the sun is elevated at an angle of 45 °.
Answer:
Step-by-step explanation:
Given
Required
Determine the equation
First, we calculate the intercepts using:
Where
b = Intercept on y axis.
a = Intercept on x axis.
From the question:
The equation becomes:
Multiply through by 3b
We have:
So:
Make b the subject
Substitute in to get the equation
Make 3y the subject
Make y the subject
$ 45 is ur y value and 180 is ur x value....slope = y/x
so ur slope is : 45/180 = 0.25 or 1/4
