Convex and Concave Heptagon Yog hais tias tag nrho cov kab pheeb ces kaum nyob rau hauv lub heptagon , nws yog hu ua convex heptagon. Yog tias qee qhov kab pheeb ces kaum nyob sab nraud ntawm heptagon thiab ib lossis ntau lub kaum sab hauv sab hauv lub kaum sab xis Qhov ntsuas ntawm lub kaum sab nrauv ntawm lub vertex tsis cuam tshuam los ntawm sab twg yog txuas ntxiv: ob sab sab nrauv uas tuaj yeem tsim ntawm ib qho vertex los ntawm kev sib txuas ua ke ntawm ib sab lossis lwm qhov yog cov kaum sab xis thiab yog li sib npaug. https://en.wikipedia.org › wiki › Internal_and_external_angles
kaum sab hauv thiab sab nraud - Wikipedia
yog ntau dua 180 degrees, ces lub heptagon hu ua concave heptagon.
Puas yog heptagon yog convex lossis concave?
Cov kaum sab hauv ntawm lub heptagon ib txwm ntxiv txog 900 °. Tag nrho cov heptagons muaj xya vertices, ib yam li lawv muaj xya sab thiab xya lub kaum sab hauv. Tag nrho cov heptagons yuav muaj 14 kab pheeb ces kaum; Yog hais tias tus kab pheeb ces kaum nyob sab nraum lub polygon, koj paub tias tus heptagon yog concave.
Puas muaj pes tsawg sab ntawm lub heptagon convex?
Nyob hauv geometry, ib heptagon yog ib tug xya-sided polygon lossis 7-gon. Lub heptagon yog qee zaum hu ua septagon, siv "sept-" (ib qho kev tshem tawm ntawm septua-, Latin-los ntawm cov lej ua ntej, tsis yog hepta-, Greek-los ntawm cov lej ua ntej; ob qho tib si yog cognate) ua ke nrog cov lus Greek. "-agon" meaning angle.
Muaj pes tsawg kab pheeb ces kaum nyob rau hauv lub convex heptagon?
Ib tug heptagon muaj 14 kab pheeb ces kaum. Raws li ib tug heptagon muaj xya sab, nws kuj yuav muaj xya vertices. Tus qauv los txiav txim tus naj npawb ntawm kab pheeb ces kaum a…
11 sab zoo li cas hu ua?
In geometry, a hendecagon (kuj undecagon lossis endecagon) lossis 11-gon yog kaum ib-sab polygon. (Lub npe hendecagon, los ntawm Greek hendeka " kaum ib" thiab -gon "kab", feem ntau nyiam mus rau hybrid undecagon, nws thawj feem yog tsim los ntawm Latin undecim "kaum".)
