+0  
 
0
116
1
avatar

Find the area with work

Guest Jun 14, 2017

Best Answer 

 #1
avatar+4777 
+2

area = (1/2) * base * height

 

Let's call the base   10 km .

 

 

Here, I just rotated it so that the base is at the bottom and added the pink line for the height.

 

sin θ  =  opposite / hypotenuse

sin 37º  =  height / 7                          Multiply both sides of this equation by  7  .

7 sin 37º  =  height

 

area  =  (1/2) * base * height

area  =  (1/2) * (10) * (7 sin 37º)

area  =  35 sin 37º                           Put this into a calculator to get that...

area  ≈  21.064   square km

hectictar  Jun 14, 2017
Sort: 

1+0 Answers

 #1
avatar+4777 
+2
Best Answer

area = (1/2) * base * height

 

Let's call the base   10 km .

 

 

Here, I just rotated it so that the base is at the bottom and added the pink line for the height.

 

sin θ  =  opposite / hypotenuse

sin 37º  =  height / 7                          Multiply both sides of this equation by  7  .

7 sin 37º  =  height

 

area  =  (1/2) * base * height

area  =  (1/2) * (10) * (7 sin 37º)

area  =  35 sin 37º                           Put this into a calculator to get that...

area  ≈  21.064   square km

hectictar  Jun 14, 2017

7 Online Users

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