10th Samacheer Quiz

Q1. What is the curved surface area of a cone of radius r and slant height l?

πrl πr² πl² 2πrl

Q2. What is the slant height of a right circular cone?

√(r²+h²) r+h r²+h² √(r²−h²)

Q3. Cylinder r=3,h=5, π=3 எனில் volume?

45 90 135 180

Q4. Square side 6 cm perimeter?

12 cm 18 cm 24 cm 36 cm

Q5. A hemisphere of radius 6 cm has curved surface area

36π cm² 72π cm² 108π cm² 144π cm²

Q6. If a solid is melted and recast into another solid, what remains unchanged?

Volume Surface area வடிவம் அளவுகள்

Q7. What is the total surface area of a frustum?

π(R+r)l + π(R²+r²) π(R+r)l π(R−r)l 2πR²

Q8. A sphere and a hemisphere have the same radius. What is the ratio of their volumes?

1:2 2:1 3:1 1:3

Q9. What is the volume of a frustum with radii R and r and height h?

1/3πh(R²+r²+Rr) πh(R+r) 1/2πh(R²+r²) πRrh

Q10. கனசதுரத்தின் பக்க அளவு 3 cm. அதன் கனஅளவு?

9 cm³ 18 cm³ 27 cm³ 36 cm³

அளவியல்