Question

The perimeter of a triangle with vertices (0, 4), (0, 0) and (3, 0) is
(A) 5 (B) 12 (C) 11 (D) 7 + SQRT5

NCERT Class X
Mathematics - Exemplar Problems

Chapter _COORDINATE GEOMETRY

Answer 1

(b)12 because

when we draw this triangle on the graph we have

base=3 , perpendicular=4 and hypotunose=?

by pythagorus theorem

Hsquare=base square + perpendicular square

              =9+16

H=5

perimeter=3+4+5

                =12