"angled" is a perfectly acceptable word in written English
You can use it to describe something that has edges or lines that form an angle, such as a roof or a triangle. For example, "The angled roof of the house creates a unique shape."
Greenway c Healy b Perry 2 (England 58-3) Perry, the quickest bowler on show today, comes back into the attack and beats a groping Greenway with a ball angled across the left-hander.
He is also the first House majority leader to be defeated for nomination since the office was created 115 years ago.Mr Cantor had openly angled to become the next Speaker of the House, and was not above undercutting John Boehner, who fills the job now.
With enthusiasm at last waning for "lying-in-state-gate"—a silly row over some gossipy newspaper allegations to the effect that Downing Street had angled for the incorrigibly thespian Mr Blair to be given an inappropriately prominent role at the Queen Mother's funeral a storm of press outrage over the "snooper's charter" was about to break over the home secretary's head.
But the Lebanese say they are angled too far northward.
He has angled openly for the vote of "guys with Confederate flags in their pick-up trucks", and has said that America is "not safer" since the capture of Saddam Hussein.
The idea is that fliers can attach a tray to their seats which can be angled away from their laps (see picture below).
Scalene triangles, on the other hand, have every side and angle different, so if you ever have to calculate their lengths and angles you're likely to want to use the the Sine Rule and the Cosine Rule (unless they happen to be right-angled scalene triangles, which obviously makes things easier).
Isosceles triangles have two sides the same length and hence two identical angles, so it's easy to split them down the middle and treat them as two identical right-angled triangles back to back.
So the mathematical relationship between circles and the set of right-angled triangles should be clear: The position (x, y) of a point at an angle of θ around a circle of radius r is related to θ and r in exactly the same way that the lengths of the adjacent (x) and opposite (y) sides of a right-angled triangle are related to the length of the hypotenuse r and the angle θ.
Given that every right-angled triangle is infinitely divisible into two triangles of it own type (by dropping a perpendicular from the right-angle vertex to the hypotenuse, the resulting two smaller right triangles are both similar to the original triangle) the equilateral or square faces of the solids and thus the stereometric solids themselves have no minimal size.
The first thing to understand with trigonometry is why the mathematics of right-angled triangles should also be the mathematics of circles.
