◣ STUDENTS CORNER ◢ †††††††††††††††††††††

๏ MATHEMATICAL cum PHYSICAL Formulas(নিত্য ব্যৱহাৰ্য কিছু  পদাৰ্থ বিজ্ঞান তথা গানিতীয় সূত্ৰ )

☞Circumference of a circle
  = 2πr.

☞ Area of a circle
= πr².

☞Area of an ellipse(axes a,b)
= π . ab.

☞Surface of a sphere
= 4πr².

☞Volume of a cylinder
= πr²h.

☞Volume of a sphere
= 4/3 πr³.

☞Volume of a cone
= 1/3πr²h.

☞Volume of a pyramid
= 1/3area of base x h.

☞Volume Of a Prism
= area of base x h.

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