Question

All the formulas used in the chapter: Surface area and Volume...
Class 9th​

Answer 1

Answer: Name Perimeter Total Surface Area Curved Surface Area/Lateral Surface Area Volume Figure

Square 4a a2 —- —- Square

Rectangle 2(w+h) w.h —- —- Rectangle

Parallelogram 2(a+b) b.h —- —- Parallelogram

Trapezoid a+b+c+d 1/2(a+b).h —- —- Trapezoid

Circle 2 π r π r2 —- —- Circle

Ellipse 2π√(a2 + b2)/2       π a.b —- —- Ellipse

Triangle a+b+c 1/2 * b * h —- —- Triangle

Cuboid 4(l+b+h) 2(lb+bh+hl) 2h(l+b) l * b * h Cuboid

Cube 6a  6a2 4a2 a3 Cube

Cylinder —- 2 π r(r+h) 2πrh π r2 h Cylinder

Cone —- π r(r+l) π r l 1/3π r2 h Cone

Sphere —- 4 π r2 4π r2 4/3π r3 Sphere

Hemisphere —- 3 π r2 2 π r2 2/3π r3

Step-by-step explanation: