+0  
 
0
45
2
avatar

One leg of a right triangle is increased by 70%, and the other leg is decreased by 70%.  By what percent does the area of the triangle decrease?

 Dec 9, 2022
 #2
avatar+1317 
+2

Say the sides of the right triangle were x and y. Originally, the area was xy/2

Now the area is 0.3x * 1.7y / 2 = 0.51xy/2

It decreased by 49%

 Dec 9, 2022

28 Online Users