line
Imagine a clock: a circle is 360 degrees, so every 5 minutes is 30 degrees. If you started at 1pm and rotated it 90 degrees it would be 1.15pm
Note: Assuming you are working with natural, integer, rational(fraction), or real numbers. It doesn't. Infinity is not a number, even though, due to us mathematicians being lazy, we denote something = infinity. But we NEVER write tan 90 = infinity. But rather lim_x->(90degree) tan x = infinity. Meaning as x gets closer to 90 degree (even though degree is a horrible measurement for angle, we will use it), the value of tan x gets large faster and unbounded. tan x? It doesn't exist. Why? Because tan x is defined as (sin x / cos x). When x = 90 degree, cos x = 0, while sin x is positive around x = 90 degree. sin x / cos x := sinx x 1 / cos x, x = 90 degree, we get 1 x 1 / 0. But the definition for inverses does not include 0, meaning 1 / 0 does NOT exist. so, sadly, tan 90degree doesn't exist. The best we can do is see what happens around x = 90degree for tan, as you go into Calculus, you will know the tool is called limits and derivatives. And you might also see the reason it is +infinity, but not -infinity. (tan x approaches -infinity as x approaches 180degree). WHat's more? You will learn a far better measurement for angle that you will stick with in Calculus.
A parallelogram perhaps?
A right angle
like an L
90degree
18 ft lbs in sequence then 90degree in sequence then 90degree in sequence then 90degrees in sequence
No, not that I have ever seen or heard of.
perpendicular
acute
a right angle (90degree)
1inch 90degree elbow centre
A line ray or segment that cuts another segment into two equal pieces while forming a 90-degree angle with it is called a perpendicular bisector. This geometric construct not only divides the segment into two equal lengths but also ensures that the angles formed at the intersection are right angles. It is significant in various fields like geometry, construction, and design, as it provides a basis for symmetry and balance.
The Positive peak of the sinewave.