Three-dimensional drawing in which all the sides are measured full size and scaled
with the drawing at 30° to the horizontal is known as
a. two point perspective
c. linear perspective
b. isometric perspective
d. multiple point perspective

b. isometric perspective

Explanation:

    The isometric perspective occurs when the viewer is located at infinity (and therefore the straight lines you project are parallel to each other) and fall perpendicular to the Frame Plane.

    The system of axes of the situation to be projected will occur in perspective, when viewed in the plane, equi-angularly (at 120º angles).

   In this way, an isometric perspective can be traced through an edge of lines drawn from 30 ° angles.

very interesting question. i'm a guy, so my vote hardly matters, but blue according to my wife is a purple with more blue than red.

the "brown"   is not mauve. that's the tough one. it has more brown the mauve in it. you almost need a color wheel to tell or a paint sample book. her gloves are a deeper purple.

i would also qualify this by saying you need say how good your monitor is. i'm working with a lap top so i couldn't swear by anything i've written is accurate. i had 3 women offer an opinion. they were not in agreement and they were not certain.

for posting. i'm more of a math type so i'm staying out of this but it was lots of fun.