9-sinf, Geometriya. 7-nazorat ishi

9-sinf, Geometriya. 7-nazorat ishi.

1) Berilgan aylanaga ichki chizilgan muntazam o’n ikki burchakni yasashni tushuntiring.

2) Tomoni 12 sm bo’lgan muntazam uchburchakka ichki chizligan aylana uzunligini toping.

3) Markaziy burchagi 150⁰ ga teng, radisusi 18 sm bo’lgan:

a) aylana yoyining uzunligini;
b) yoyi 150⁰ li sketorning yuzini;
d) yoyi 150⁰ li segmentning yuzini toping.

4) Ushbu yarim doira bo’yalgan qismining yuzi N ga teng,

BC yoyning gradus o’lchovi 60⁰ ga , CD yoyning
gradus o’lchovi esa 30⁰ ga teng. To’liq doiraning
yuzini toping.


9-sinf, Geometriya. 7-nazorat ishi.

1) Berilgan aylanaga ichki chizilgan muntazam o’n ikki burchakni yasashni tushuntiring.

2) Tomoni 12 sm bo’lgan muntazam uchburchakka ichki chizligan aylana uzunligini toping.

3) Markaziy burchagi 150⁰ ga teng, radisusi 18 sm bo’lgan:

a) aylana yoyining uzunligini;
b) yoyi 150⁰ li sketorning yuzini;
d) yoyi 150⁰ li segmentning yuzini toping.

4) Ushbu yarim doira bo’yalgan qismining yuzi N ga teng,

BC yoyning gradus o’lchovi 60⁰ ga , CD yoyning
gradus o’lchovi esa 30⁰ ga teng. To’liq doiraning
yuzini toping.
9-sinf, Geometriya. 7-nazorat ishi.

1) Berilgan aylanaga ichki chizilgan muntazam o’n ikki burchakni yasashni tushuntiring.

2) Tomoni 12 sm bo’lgan muntazam uchburchakka ichki chizligan aylana uzunligini toping.

3) Markaziy burchagi 150⁰ ga teng, radisusi 18 sm bo’lgan:

a) aylana yoyining uzunligini;
b) yoyi 150⁰ li sketorning yuzini;
d) yoyi 150⁰ li segmentning yuzini toping.

4) Ushbu yarim doira bo’yalgan qismining yuzi N ga teng,

BC yoyning gradus o’lchovi 60⁰ ga , CD yoyning
gradus o’lchovi esa 30⁰ ga teng. To’liq doiraning
yuzini toping.