Planimetriya (tekislikdagi geometriya)

1. $\sqrt{2 + \sqrt{3}} \cdot \sqrt{2 - \sqrt{3}}$ ni hisoblang.

1. A) $1$
2. B) $\sqrt{3}$
3. C) $2$
4. D) $4$

Javobni ko'rish

To'g'ri javob: A) $1$

2. $\dfrac{n-3}{n+2} < \dfrac{1}{2}$ tengsizlikni qanoatlantiruvchi $(-2, 8)$ oraliqdan butun sonlar nechtasi?

1. A) $7$
2. B) $8$
3. C) $9$
4. D) $10$

Javobni ko'rish

To'g'ri javob: B) $8$

3. Uzunligi 28 sm bo‘lgan kesma 3 ta kesmaga bo‘lingan. Chetki kesmalar markazlari orasidagi masofa 16 sm ga teng. O‘rtadagi kesma uzunligini toping

1. A) 4
2. B) 10
3. C) 8
4. D) 12

Javobni ko'rish

To'g'ri javob: A) 4

4. Malika akvariumining balandligi 48 sm. Malikaning bo‘yi, akvariumidan uch baravar baland. Malikaning bo‘yi qancha?

1. A) 128 sm
2. B) 96 sm
3. C) 72 sm
4. D) 144 sm

Javobni ko'rish

To'g'ri javob: D) 144 sm

5. ABC teng yonli uchburchakning BC asosida D nuqta olingan. Agar AB=AC=20, BD=21, DC= 11 bo‘lsa, AD kesma uzunligini toping.

1. A) 13
2. B) 10
3. C) 14
4. D) 12

Javobni ko'rish

To'g'ri javob: A) 13