C-16-Q128mediumsingle_mcq

Rectangle $12$ m $\times 10$ m and a circular segment of radius $12$ m at angle $30°$ are joined. The arc length is approximately —

a $3.14$ m
b $6.28$ m
c $12.56$ m
d $25.13$ m

ব্যাখ্যা

The arc of the segment is $s=\frac{\pi r\theta}{180°}=\frac{\pi\times 12\times 30}{180}\approx 6.28$ m. Only the radius and central angle of the segment matter for arc length.

এই অধ্যায়ের আরও প্রশ্ন

C-16-Q129The total area of the rectangle plus the segment above is approximately —
C-16-Q130A circle's circumference equals the perimeter of an equilateral triangle. The ratio (circle's area : triangle'
C-16-Q131The diagonal of a rectangular solid with edges is —
C-16-Q132The total surface area of a rectangular solid with edges is —
C-16-Q133The volume of a rectangular solid with edges is —
C-16-Q134A rectangular solid with edges cm has volume —
C-16-Q135The total surface area of a rectangular solid cm is —
C-16-Q136The diagonal of the solid cm is approximately —
C-16-Q137A rectangular solid has length m, width m, height m. Its volume is —
C-16-Q138The total surface area of the rectangular solid m is —

Chapter 16: Mensuration — সব প্রশ্ন দেখুন (210টি) →

Rectangle $12$ m $\times 10$ m and a circular segment of radius $12$ m at angle $30°$ are joined. The arc length is approximately —

3.14

6.28

12.56

25.13

ব্যাখ্যা

The arc of the segment is $s=\frac{\pi r\theta}{180°}=\frac{\pi\times 12\times 30}{180}\approx 6.28$ m. Only the radius and central angle of the segment matter for arc length.

Rectangle 121212 m ×10\times 10×10 m and a circular segment of radius 121212 m at angle 30°30°30° are joined. The arc length is approximately —

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

Rectangle 121212 m ×10\times 10×10 m and a circular segment of radius 121212 m at angle 30°30°30° are joined. The arc length is approximately —

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

Rectangle $12$ m $\times 10$ m and a circular segment of radius $12$ m at angle $30°$ are joined. The arc length is approximately —

Rectangle $12$ m $\times 10$ m and a circular segment of radius $12$ m at angle $30°$ are joined. The arc length is approximately —