Pembemraba ni pembe yenye kiwango cha nyuzi 90.
Kama mistari miwili yapandana kuna pembe nne zinazojitokeza. Kama pembe hizi zote ni sawa basi ni pembemraba.
Makala hii kuhusu mambo ya sayansi bado ni mbegu. Je, unajua kitu kuhusu Pembemraba kama historia yake au mahusiano yake na mada nyingine? Labda unaona habari katika Wikipedia ya Kiingereza au lugha nyingine zinazofaa kutafsiriwa? Basi unaweza kuisaidia Wikipedia kwa kuihariri na kuongeza habari. |
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