Answers

2015-05-28T09:25:39+05:30
Given, 
length of diagonal=15 cm
length= 12 cm
now,
Breadth² = diagonal² -  length²
 Breadth²  = 15² - 12²
  Breadth²  = 225 - 144
   Breadth²   =  81

therefore,
breadth = √81
              = 9 cm

now for the perimeter of the triangle= (15+ 12 +9 ) cm 
                                                     =36 cm


1 5 1
2015-05-28T10:08:43+05:30
Given, 
length of diagonal=15 cm
length= 12 cm
now,
B² = diagonal² -  length²
B²  = 15² - 12²
B  = 225 - 144
B²   =  81

So,
B = √81
              = 9 cm

now for the perimeter of the triangle= (15+ 12 +9 ) cm 
                                                     =36 cm
1 5 1