ExamBro
ExamBro
AP EAMCET · Maths · Straight Lines

Suppose a triangle is formed by x+y=10 and the coordinate axes. Then the number of points x,y where x and y are natural numbers, lying inside the triangle is

  1. A 36
  2. B 55
  3. C 45
  4. D 30
Verified Solution

Answer & Solution

Correct Answer

(A) 36

Step-by-step Solution

Detailed explanation

Plotting the diagram of the given value we have, Triangle formed will have vertices as O0,0, A10,0 and B0,10 If x=1, Point on the hypotenuse ≡1,9 So, number of integral points lying inside triangle when x=1 is 8 i.e 1,1,1,2⋯1,8 Similarly, when x=2, number of…