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হোম›নবম-দশম শ্রেণি›English Version›Mathematics›Chapter 16: Mensuration›C-16-Q171

C-16-Q171mediumsingle_mcq

If a regular hexagon of side $12$ cm is inscribed in a circle, the area of the circle is —

a $36\pi$ sq cm
b $72\pi$ sq cm
c $144\pi$ sq cm
d $216\pi$ sq cm

ব্যাখ্যা

Since a hexagon's side equals the circle's radius, $r = 12$ cm. Area $= \pi r^2 = \pi (12)^2 = 144\pi$ sq cm.

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এই অধ্যায়ের আরও প্রশ্ন

C-16-Q172The area of the circle minus the area of the inscribed regular hexagon (side cm) is —
C-16-Q173Length of equal sides of an isosceles triangle is cm and area is sq cm. The base is —
C-16-Q174The perimeter of the isosceles triangle with equal sides cm and base cm is —
C-16-Q175A square inscribed in a circle has side cm. Then the diameter of the circle is —
C-16-Q176With the square of side cm inscribed in a circle, the radius is —
C-16-Q177The arc length intercepted on the circle by one side of the inscribed square (radius ) corresponds to a centra
C-16-Q178The arc length intercepted by one side of the inscribed square (radius cm, central angle ) is —
C-16-Q179A rectangular solid has length cm, width cm and diagonal cm. Its height is —
C-16-Q180If area of a rectangle is sq m and its length reduced by cm gives a square, the breadth (in m) is approximatel
C-16-Q181The half of the perimeter of a parallelogram with adjacent sides cm and cm is —

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