The answer is the first one
(with blue and orange triangles)
Dilation makes things bigger
Lateral Area means Area of all four triangles
Now area of 1 triangle = 
=
square meters
Now for four triangles we multiply by 4
So
Lateral area of pyramid =
m^2
that is Option D
Y is 40/7
that will be <span>5.71428571429
</span>
The question describes a right triangle with hypotenuse as 9 and one of the angles as 75 degrees. We are looking for the length of the leg adjacent the given angle 75 degrees.
Recall that:
