Esther starts at one corner of a square field and walks 90 feet along one side to another corner of the field. She turns 90° and walks 70 feet, and then walks straight back to where she started.

What is the area of the part of the field she walked around?

A.

3150 ft²

B.

4900 ft²

C.

6300 ft²

D.

8100 ft²

Question

Esther starts at one corner of a square field and walks 90 feet along one side to another corner of the field. She turns 90° and walks 70 feet, and then walks straight back to where she started. 

 

What is the area of the part of the field she walked around?
  
 
 

 
 

  

  A. 
 
3150 ft²
   
   

 
 

  

 B. 
 
4900 ft²
   
   

 
 

  

 C. 
 
6300 ft²
   
   

 
 

  

 D. 
 
8100 ft²

anonymous · Answer

you need to use the formula for the Area of a Triangle:
A = Base x Height / 2   so ....
A = 90 x 70 / 2  ... Answer is  .... :-)

anonymous · Answer

@zjicez  thx :)))