Can it also be solve as the following? 
Question
The sum of two digit number is 9, nine times of this number is twice the number obtained by reversing the order.find the number
Sir it's a humble request to u to upload videos and notes for soln of supplementary exercise of ncert textbook of maths .
This is because in supplementary part there are extra topics and important questions also
This is because in supplementary part there are extra topics and important questions also
Questions 1.
- ABCPA is a quadrant of a circle of radius 14cm . With AC as diameter, a semicircle is drawn. Find area of the shaded portion
Maths
Dec. 29, 2019, 1:01 p.m.
Answer
Construct a line segment AB of lenght 3.7 cm Now , construct another line segment CDsuch that CD=3AB
You have studied in class 11th chapter 9 example 3 that a median of a triangle divides into two Triangles of equal areas verify this result for triangle ABC whose vertices are a 4 - 6 b 3 - 2 and C 5, 2