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## Area & Surface area Formulas

We are going to share Surface area Formulas for the student who is studying in the class of 5, 6, 7, 8, 9, 10, 11, and 12. In math, the Surface area is a very important topic which is helping to improve scores in the exam. If you want to become very intelligent in math then you should remember the Surface area Formulas to resolve Surface area related problems. If you have any questions related to the Surface area please let me know through the comment and mail. There are millions of students looking for Surface area formulas that why we shared Surface area formulas below.

 Area of a circle Formulas: $$\pi r^2$$ r= radius Area of a triangle Formulas: $$\sqrt{s(s-a)(s-b)(s-c)}$$ a, b, c is length of sides, s is semi-perimeter Area of a trapezoid Formulas: $$\frac{a+b}{2} \times h$$ a, b is base and h is height Area of a rectangle Formulas: $$l \times w$$ l is length, w is width Area of a square Formulas: $$a^2$$ a is length of side Area of a parallelogram Formulas: $$l \times w$$ l is length, w is width Area of a right triangle Formulas: $$\frac{a \times b}{2}$$ a, b is side of right angle triangle Area of equilateral triangle Formulas: $$\frac{\sqrt{3}}{4} \times a^2$$ a is length of side Area of isosceles triangle Formulas: $$\frac{b \times h}{2}$$ b is base, h is height of triangle Area of a hexagon Formulas: $$\frac{3 \sqrt{3}}{2} \times a^2$$ a is length of side Area of a sector Formulas: $$\frac{\theta}{360} \pi r^2$$ r= radius Area of a rhombus Formulas: $$\frac{p \times q}{2}$$ p, q diagonal of rhombus Area of an oval Formulas: $$\pi \frac{a}{2} \times \frac{b}{2}$$ a is major axis, b is minor axis Area of a ring Formulas: $$\pi (R^2 – r^2)$$ R is Outer radius, r is inner radius Area of an octagon Formulas: $$2 (1+ \sqrt{2}) a^2$$ a is length of side Area of a semicircle Formulas: $$\pi \frac{r^2}{2}$$ r= radius Area of a pentagon Formulas: $$\frac{1}{4} \sqrt{5(5+2 \sqrt{5} )} a^2$$ a is length of side Area of a kite Formulas: $$\frac{p \times q}{2}$$ p, q diagonal Area of an ellipse Formulas: $$\pi \frac{a}{2} \times \frac{b}{2}$$ a is major axis, b is minor axis Surface Area of a sphere Formulas: $$4 \pi r^2$$ r is radius Surface Area of a cylinder Formulas: $$2 \pi r (r+h)$$ r is radius, h height Surface Area of a cube Formulas: $$6 a^2$$ a is length of side Surface Area of a cone Formulas: $$\pi r (r + \sqrt{h^2 + r^2})$$ r is radius, h height Surface Area of a box Formulas: $$2(h × W) + 2(h × L) + 2(W × L)$$ width (w), length (l) and height (h) Surface Area of a rectangular prism Formulas: $$2(wl+lh+hw)$$ width (w), length (l) and height (h) Surface Area of a triangular prism Formulas: $$ab+3bh$$ width (a), length (b) and height (h) Surface Area of a pentagonal prism Formulas: $$5ab+5bh$$ width (a), length (b) and height (h) Surface Area of a Hexagonal prism Formulas: $$6ab+6bh$$ width (a), length (b) and height (h) Surface Area of a Square Pyramid Formulas: $$2(b × s) + b^2$$ Slant Hiehgt (S), base (b) Surface Area of a Triangular Pyramid Formulas: $$\frac{1}{2}(a × b) + \frac{3}{2}(b × s)$$ Altitude (a), Slant Hiehgt (S), base (b) Surface Area of a Pentagon Pyramid Formulas: $$\frac{5}{2}(a × b) + \frac{5}{2}(b × s)$$ Altitude (a), Slant Hiehgt (S), base (b) Surface Area of a Hexagonal Pyramid Formulas: $$3(a × b) + 3(b × s)$$ Altitude (a), Slant Hiehgt (S), base (b)

#### Summary of Surface area Formula

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