+0  
 
0
288
1
avatar+598 

The square with vertices $(-1, -1)$, $(1, -1)$, $(-1, 1)$ and $(1, 1)$ is cut by the line $y=\frac{x}{2}+ 1$ into a triangle and a pentagon. What is the number of square units in the area of the pentagon? Express your answer as a decimal to the nearest hundredth.

michaelcai  Oct 31, 2017
 #1
avatar+91071 
+2

 

The area of the triangle formed is

 

(1/2) [ 1/2 ] * [1]  =  1/4  units^2

 

The area of the square is  2 unirs on each side  =    2^2  =   4 units"2

 

So....the area of the pentagon is

 

4 - 1/4 = 

 

4 - .25  = 

 

3.75 units^2

 

 

cool cool cool

CPhill  Oct 31, 2017

9 Online Users

avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.