+0  
 
0
63
1
avatar

In the picture of a rectangle, a right triangle has been cut out with scissors, and now the remaining area is x. The length of the red line is y. Give your answer as x+y.

 

 Jul 19, 2020
 #1
avatar+27660 
+1

The triangles legs are  5 and 12       y (via  pythagorean theorem )  = 13 cm

  origianl area of rectangle was 15 x 20 = 300 cm2

      less the triangle   300 - 1/2 *5*12 = x = 270 cm2

 Jul 19, 2020

45 Online Users