☰ Mundarija · Matematika

Parallelepiped yoyilmasi, doira va aylana

Darslar 94–98 · 5 ta dars · I.V. Repyova. Matematika 3-sinf, 1–4-qismlar. Novda Edutainment, 2023
Javoblar ota-onalar va o‘qituvchilar uchun.
1
Aylananing radiusi 15 sm. Diametri necha santimetr?
2
Parallelepipedning o‘lchamlari 9 sm, 2 sm va 2 sm. To‘la sirt yuzi necha sm²?
3
4 ta gul chizildi, har birida 6 gulbarg, bitta gulbarg 12 sm² yuzga ega. Barcha gulbarglarning yuzi necha sm²?
4
Sirkul 25 mm ochilgan. Chizilgan aylananing diametri necha millimetr?
5
Yumaloq stolning diametri 1 m 20 sm. Radiusi necha santimetr?