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Matematyka z plusem 1. Podręcznik

Pole prostokata: P=10 cm⋅8 cm=80 cm2

12 cm2=2e⋅f​

a) (−3, 10),   (6, 10)

a) (3, 0), (0, 3), (−3, 0), (0, −3)

1. W II lub IV ćwiartce, albo w punkcie (0,0).

&nbsp;<img src="https://prod.odrabiamy-assets.pl/uploads/content_image/image/27046/Lp8C07PYyPPgkKUF1SCxbQ%3D%3D_f88f3978518fc238ba585b1dac8f7133b801a0e9af1ee58385e9d1c101746040.jpg"> PI​=26⋅4​=12

a) &nbsp;<img src="https://prod.odrabiamy-assets.pl/uploads/content_image/image/27047/jymzUR0o15820KGxyi/Avg%3D%3D_88085e0384e32e5639ea6b65cb9ef7fef61daa5dcf94c5b8aa7bd7b4a6fc5f7e.jpg"> P=21​(8+3)⋅5=255​=27,5

<img src="https://prod.odrabiamy-assets.pl/uploads/content_image/image/27050/BLjMaSmPpdLt%2BaTn4RxsHQ%3D%3D_59472433d4bf80996e11d97cf4d63213a0423c95ee1e6e77bb68c164dbd84f78.jpg"> <img style="vertical-align: middle;" src="../../../math/formula?%5Cdisplaystyle%7B%5Cleft%7C%7BA%7D%7BB%7D%5Cright%7C%7D%3D%7B4%7D-%7B%5Cleft(-%7B3%7D%5Cright)%7D%3D%7B7%7D"> a)&nbsp; 10,5=21​⋅a⋅7 &nbsp; a=221​⋅72​=3 Są 4 takie punkty: (−3, 2+3)=(−3, 5) &nbsp; (−3, 2−3)=(−3, −1) &nbsp; (4, 2+3)=(4, 5)

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