# Tekshirdi 5-nazorat ishi

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11 geometriya nazorat ishi daftari
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Tekshirdi

5-nazorat ishi
Sana ­­­­­­­­­­­­­­­­­­­­­­­­–––––––––––––––––––––––––––––––––––

1. Piramidaning yon qirrasi uchta teng qismga bo’linib, uning bo’linish nuqtalaridan asosiga parallel tekisliklar o’tkazilgan. Agar piramida asosining yuzi 360 cm2 ga teng bo’lsa, uning kesimlari yuzini toping.

2. Piramida balandligining o’rtasidan asosiga parallel tekislik o’tkazilgan. Bu tekislik piramida hajmini qanday nisbatda bo’ladi?

3. To’rtburchakli muntazam kesik piramidaning asoslarining tomonlari 14 cm va 10 cm, diagonali esa 18 cm ga teng. Kesik piramidaning balandligini toping.

4. Uchburchakli piramidaning bitta qirrasi 4 cm ga, qolganlari esa 3 cm ga teng. Piramidaning hajmini toping.

5. Piramida nima?

Javoblari
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