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Sarface area and volume mathematics formula

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surface area and volume mathematics formula

EduICS এর পক্ষ থেকে প্রত্যেককে স্বাগতম। বর্তমানে কেন্দ্র সরকার কিংবা রাজ্য সরকারের বহু পরীক্ষার নোটিফিকেশন বেরিয়েছে।  বিগত কয়েক বছরের প্রশ্নের উপর ভিত্তি করে আমরা ম্যাথমেটিক্স এর কিছু ফর্মুলা সারফেস এরিয়া এবং ভলিউম থেকে শেয়ার করেছি যেগুলো ম্যাথমেটিক্স সলভ করতে তোমাদের কাজে লাগবে তাই সূত্র গুলি স্ক্রিনশট করে রেখে দিতে পারো। 

surface area and volume formula

Surface Area & Volume Formulas

Surface Area & Volume Formulas

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1. Cube

Total Surface Area = 6a2

Curved Surface Area = 4a2

Volume = a3

Diagonal = a√3

2. Cuboid

Total Surface Area = 2(lb + bh + hl)

Curved Surface Area = 2(l + b)h

Volume = l × b × h

Diagonal = √(l2 + b2 + h2)

3. Cylinder

Total Surface Area = 2πr(h + r)

Curved Surface Area = 2πrh

Volume = πr2h

4. Cone

Total Surface Area = πr(l + r)

Curved Surface Area = πrl

Volume = 13πr2h

l = √(r2 + h2)

5. Sphere

Total Surface Area = 4πr2

Curved Surface Area = 4πr2

Volume = 43πr3

6. Hemisphere

Total Surface Area = 3πr2

Curved Surface Area = 2πr2

Volume = 23πr3

7. Frustum of a Cone

Volume = 13πh(r12 + r22 + r1r2)

Total Surface Area = π(r12 + r22 + l(r1 + r2))

Curved Surface Area = πl(r1 + r2)

Slant Height = √(h2 + (r1 - r2)2)

Total Surface Area of Bucket = πl(r1 + r2) + πr12 (When top is open)

8. Regular Polygon

Number of Diagonals = n(n - 3)2

Each Exterior Angle = (360°n)

Each Interior Angle = 180° - Exterior Angle

Angle of Regular Polygon = (n - 2)n × 180°

Perimeter = n × a (Where a = side of polygon)

9. In Convex Polygon

Sum of all Exterior Angles = 360°

Sum of all Interior Angles = (n - 2) × 180°

Sum of all Exterior Angles of any Polygon = 360°



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