A very simple equation indeed. Look at the ry1 .
Look at the ry1 and see how easy two equations with two unknowns are .
Well this question is to check your eyes. The smallest difference between these segments (between 3 and 4) is about 1/4 ths of a millimeter. Some
may have difficulties in differentiating. A single hair is about 60 μm. (a μm. is 1/1000 ths of a millimeter), about 1/4 ths of the minimal difference of our segments. Most
of us see a sigle hair.
∠a and ∠c are congruent .
The choice is obvious, the question is just for remembrance and the next question .
Look at the definition of Radian and try to understand .
Since the sum of inner angles of a rectangle is 360 degrees, the right triangle must have ... .
Since the adjacent angles at the bottom of I and II are both 90 degrees , the remaining angles in both triangles should have a total of 90
degrees .
All we know is still m(∠1 + ∠3) = m(∠d + ∠a) .
An alternate interior and its adjacent alternate exterior have a total measure of 180 degrees .
Alternate interior of B is the vertical of 3 .
It is supposed to lead to an equivalent geometry . The one we have is simple enough.
Equivalency left aside, maybe due to being conditioned, I can not imagine any candidate. And I can not show the impossibility. So it remains open.
All .
3vial (trivial). Just a preparation.
It should be as many as the intersection points multiplied by 4.Look at question 8 of test 1 of this group via the Link.
The first 3 form a triangle and for the fourth there are 3 possibilities: It crosses the triangle formed as the red, it passes from the upper
side or lower side of it as the green or blue rays. In case it intersects the triangle formed by the first 3 ...
See the next question's tip .
One of the angles of the triangles are right angles, one of the others are vertical .
In the evening, when the prof and his wife are on the phone again, she asks:
"I don't understand it. When you count, you get 39, and when they do, they get 40.
That's more than strange..."
"Well", the prof says. "This is a cordless phone, so
you can stay on the line and count with me: zero, one, two, three,..."
This joke is to remind you of two facts:
1. "Zero" is nor a conting number !
2. Points, lines, planes etc. are just thought objects !
Divide 878 by 60 to find 14 with a remainder of 38 .
Remember borrow .
Remember carry
Have a look at question 22 of test 1 of this section via the Link given.
Be careful about the top corner.
180 - 88 - 24 = ?
3vial answer .
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