+0  
 
0
124
1
avatar

gym members are instructed to lift their legs up at a 60 degree angle during leg lifts. One memeberhas legs that are 30 inches long.what is the height in inches of the members feet duringthe leg lift. if necessary round decimal awnsers to the nearest tenth

Guest Mar 30, 2017
Sort: 

1+0 Answers

 #1
avatar+76959 
+1

We can use the sine, here

 

sin (60)  = H / 30   where H is the height we are interested in.......

 

Multiply both sides by 30

 

30 *  sin (60)   = H

 

30 * sqrt (3) / 2   = H

 

15 * sqrt (3)  =  H  ≈  25.98 inches

 

 

 

cool cool cool

CPhill  Mar 30, 2017

20 Online Users

avatar
avatar
avatar
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details