For other CBSE Worksheet for class 10 Mathematic check out main page of Physics Wallah.
FORMULAE
Page 187 n 188 Diagram in each block
1. Area of right angled triangle A = 1/2 a b Perimeter P = a + b+ c |
6. Parallelogram A = b × h P = Sum of all four sides |
2. Scalene triangle with sides a, b, c Semi-perimeter s = a+b+c/2, Area A=√(s(s-a)(s-b)(s-c)) Perimeter P= a + b + c |
7. Trapezium A = h/2(a + b) |
3. Isosceles right angled triangle A =1/2a^{2} P = a + a + d = 2a+ d |
8. Quadrilateral whose longer diagonal d and the lengths of perpendiculars from opposite vertices h_{1} and h_{2}are given A = d/2 ( h1 + h2) |
4. An equilateral triangle A = ; P = 3a ; AM =√3/2 a |
9. Circle d = 2r or r =d/2 =2Π^{2} circumference C = 2 2Π r |
5. Rhombus whose diagonals are and A = 1/2d_{1}d_{2} ; P = 4a Side =√((d_{1}/2)^{2}+(d_{2}/2)^{2} ) |
10. Radius of in circle of a triangle =(Area of triangle)/(semi-perimeter of the triangle) |