# Apklausa - diktantas

Lygiagretainio plotas 7 klas Skuodo rajono Ylaki vidurin mokykla Matematikos vyr.mokytoja Jrat Patkauskait Pamokos tikslai ir udaviniai: 1. 2. 3. Susipainti su lygiagretainio ploto svoka;

Imokti atrasti ir rodyti lygiagretainio ploto formul; Imokti i teorem taikyti sprendiant konkreius realaus turinio udavinius. Apklausa - diktantas 1. 2. 3. 4. 5. Kvadrato kratin 3 cm. Jo

plotas lygus...... 9 cm=.mm. Staiakampio formos glyno ilgis 2m, o plotis 3,5m. Koks glyno plotas? Trikampio plotas 60m. Kratin lygi 40m. Kokio ilgio auktin, nubrta t kratin? Laukas yra kvadrato formos ir jo plotas 4ha. Kokio ilgio laukas? Atsakymai 1.

9cm 2. 900mm 3. 7m 4. 3m 5.

200m Lygiagretainio ploto formuls ivedimas h a S=ah Lygiagretainio ploto skaiiavimo pavyzdys

Lygiagretainio kratin 12,5cm, o j nubrta auktin lygi 10cm. Apskaiiuokite lygiagretainio plot. Duota: h=10cm, a=12,5cm. Rasti: S. Sprendimas: S= ah; S=1012,5=125cm. Ats.: S=125cm. Uduotis poroms 1. Lygiagretainio viena kratin 7cm, o

j nubrta auktin lygi 3,5cm. Raskite lygiagretainio plot kvadratiniais milimetrais. 2. Lygiagretainio viena kratin lygi 12cm, o plotas 78cm. Raskite lygiagretainio auktin, nubrt t kratin. Uduoties sprendimai 2. Duota: a=12cm; S=78cm. 1.Duota: a=7cm;

h=3,5cm. Rasti: S. Sprendimas S=ah; S=73,5=24,5cm. Ats.: S=24,5cm. Rasti: h. Sprendimas h=S/a; h= 78/12=6,5cm. Ats.: h=6,5cm.

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