An acute angle looks like a book that is a more closed than open.
Chat with our AI personalities
If you have the sine of an angle and you need to find the angle, you have a few choices. They're exactly the same choices that you have if you're going the other way ... you have the angle and you need to find its sine: -- pocket calculator, or computer . . . the way it's most often done these days -- look it up in a table in a reference book -- calculate it on paper from an infinite series . . . technically possible, but no reason to subject yourself to the heartburn unless you need extreme precision, better than what you can get with a 10-digit calculator.
I'm guessing it would be a rectangular prism, whether it's open or closed. Picture it as a rectangle when looking at it from the from, then angle it slightly so you can see it has depth. Rectangular prism :)
Work done is zero when force acts right angle to the direction of the motion of the body . my situation of zero work done , one day i hold many books approximately 15 after some time i feel very tired but there is a physical work done is zero because i worked against right angle . i feel actual work is done because when i holding book my muscles and blood circulate all over the body so i feel work is done. Arshad Quraishi
The math book was as heavy as a mountain.
Book I. The fundamentals of geometry: theories of triangles, parallels, and area. Book II. Geometric algebra. Book III. Theory of circles. Book IV. Constructions for inscribed and circumscribed figures. Book V. Theory of abstract proportions. Book VI. Similar figures and proportions in geometry. Book VII. Fundamentals of number theory. Book VIII. Continued proportions in number theory. Book IX. Number theory. Book X. Classification of incommensurables. Book XI. Solid geometry. Book XII.Measurement of figures. Book XIII. Regular solids.