Mathematics, 19.01.2021 15:10 samanthacruzsc51

1. Czy podane zdania są prawdziwe? Wstaw znak X w odpowiednią kratkę. Pole prostokąta o wymiarach 7 dm × 12 dm jest większe niż
80 dm2
.

TAK NIE

Prostokąt o wymiarach 2 cm × 3 cm ma mniejsze pole niż pro-
stokąt o bokach 1,5 cm i 5 cm.

TAK NIE

2. Jeden z boków prostokąta ma 10 cm, a drugi jest 2 razy krótszy. Pole tego prostokąta wynosi:
A. 5 cm2 B. 30 cm2 C. 40 cm2 D. 50 cm2
3. Pole kwadratu wynosi 25cm2. Oblicz długość boku tego kwadratu.
4. Oblicz pole prostokąta o bokach długości 4 cm i 12 cm.
5. Pole prostokąta wynosi 154 cm2, a jeden z jego boków ma 7 cm. Oblicz obwód tego prostokąta.
6. Oblicz pole kwadratu o obwodzie 18 dm.
7. Oblicz pole prostokąta, którego jeden bok ma 7 dm, a drugi jest od niego o 3 dm dłuższy.
8. Jeden bok prostokąta ma 8 cm, a jego pole wynosi 56 cm2 Oblicz długość drugiego boku tego prostokąta.

Answers: 3

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1. Czy podane zdania są prawdziwe? Wstaw znak X w odpowiednią kratkę. Pole prostokąta o wymiarach 7...