ื ืคื— ื•ืฉื˜ื— ืคื ื™ื: ื ืคื— ื’ืœื™ืœ

ืœืžื“ื• ื›ื™ืฆื“ ืœื—ืฉื‘ ื ืคื— ืฉืœ ื’ืœื™ืœ, ืžื ืกืจื•ืช ื’ื–ืจื” ื•ื’ื•ืคื™ื ืžื•ืจื›ื‘ื™ื. ืชืจื’ื•ืœ ืื™ื ื˜ืจืืงื˜ื™ื‘ื™ ืขื ืคืชืจื•ื ื•ืช ืžืคื•ืจื˜ื™ื ืฉืœื‘ ืื—ืจ ืฉืœื‘.

ืชืจื’ื•ืœ

๐Ÿ“– ืžื“ืจื™ืš ืœืžื™ื“ื”

ืžื ืกืจื” ื”ื™ื ื’ื•ืฃ ืชืœืช-ืžืžื“ื™ ื‘ืขืœ ื—ืชืš ืงื‘ื•ืข (ื‘ืกื™ืก). ื”ื ืคื— ืฉืœ ื›ืœ ืžื ืกืจื” ืžื—ื•ืฉื‘ ืขืœ ื™ื“ื™ ืžื›ืคืœืช ืฉื˜ื— ื”ื‘ืกื™ืก ืฉืœื” ื‘ื’ื•ื‘ื” ืฉืœื”, ื‘ื“ื•ืžื” ืœืขืจื™ืžืช ืคืจื•ืกื•ืช ื“ืงื•ืช ืฉืœ ื”ื‘ืกื™ืก ืขื“ ืœื’ื•ื‘ื” hh:

1. ื ืคื— ื’ืœื™ืœ

ืœื’ืœื™ืœ ื™ืฉ ื‘ืกื™ืก ืžืขื’ืœื™ ืฉืฉื˜ื—ื• A=ฯ€r2A = \pi r^2 ื•ื’ื•ื‘ื” hh. ืžื›ื™ื•ื•ืŸ ืฉื’ืœื™ืœ ื”ื•ื ืžื ืกืจื” ื‘ืขืœืช ื‘ืกื™ืก ืžืขื’ืœื™, ื”ื ืคื— ืฉืœื• ืžื—ื•ืฉื‘ ืขืœ ื™ื“ื™ ืžื›ืคืœืช ืฉื˜ื— ื”ื‘ืกื™ืก ื‘ื’ื•ื‘ื”:

2. ื ืคื— ื’ื–ืจืช ื’ืœื™ืœ

ืžื ืกืจืช ื’ื–ืจืช ื’ืœื™ืœ (ืคืœื— ื’ืœื™ืœ) ื”ื™ื ื—ืœืง ื™ื—ืกื™ ืžื’ืœื™ืœ ืฉืœื. ื”ื‘ืกื™ืก ืฉืœื” ื”ื•ื ื’ื–ืจืช ืžืขื’ืœ ืขื ืจื“ื™ื•ืก rr ื•ื–ื•ื•ื™ืช ืžืจื›ื–ื™ืช ฮธ\theta (ื‘ืžืขืœื•ืช). ื”ื ืคื— ื”ื•ื ื”ื—ืœืง ื”ื™ื—ืกื™ ืžื ืคื— ื”ื’ืœื™ืœ ื”ืžืœื.
ื ื•ืฉืื™ ืœื™ืžื•ื“

ืฉืืœื•ืช ื ืคื•ืฆื•ืช

ืžื”ื• ื ืคื—?

ื ืคื— ื”ื•ื ืžื™ื“ืช ื”ืžืจื—ื‘ ื”ืชืœืช-ืžืžื“ื™ ืฉืชื•ืคืก ื’ื•ืฃ ื›ืœืฉื”ื•. ื”ื•ื ื ืžื“ื“ ื‘ื™ื—ื™ื“ื•ืช ื ืคื— ืžืขื•ืงื‘ื•ืช, ื›ื’ื•ืŸ ืกื ื˜ื™ืžื˜ืจ ืžืขื•ืงื‘ (ืกืž"ืง) ืื• ืžื˜ืจ ืžืขื•ืงื‘ (ืž"ืง).

ื›ื™ืฆื“ ืžื—ืฉื‘ื™ื ื ืคื— ืฉืœ ืชื™ื‘ื”?

ื ืคื— ืฉืœ ืชื™ื‘ื” ืžื—ื•ืฉื‘ ืขืœ ื™ื“ื™ ืžื›ืคืœืช ื”ืื•ืจืš, ื”ืจื•ื—ื‘ ื•ื”ื’ื•ื‘ื” ืฉืœื”: V = l ร— w ร— h.

ืžื”ื• ืฉื˜ื— ืคื ื™ื ืฉืœ ื’ื•ืฃ?

ืฉื˜ื— ืคื ื™ื ื”ื•ื ื”ืฉื˜ื— ื”ื›ื•ืœืœ ืฉืœ ื›ืœ ื”ืคืื•ืช ื”ื—ื™ืฆื•ื ื™ื•ืช ืฉืœ ื’ื•ืฃ ืชืœืช-ืžืžื“ื™. ื”ื•ื ืžื™ื™ืฆื’ ื›ืžื” ื™ื—ื™ื“ื•ืช ืฉื˜ื— ืจื™ื‘ื•ืขื™ื•ืช ื“ืจื•ืฉื•ืช ื›ื“ื™ ืœื›ืกื•ืช ืœื—ืœื•ื˜ื™ืŸ ืืช ื”ื—ืœืง ื”ื—ื™ืฆื•ื ื™ ืฉืœ ื”ื’ื•ืฃ ืœืœื ื—ืคื™ืคื•ืช.

ื ืคื— ื’ืœื™ืœ โ€” ืžื“ืจื™ืš ืœืžื™ื“ื” ื•ืชืจื’ื•ืœ | SealMath