I've tried to do these but I've been stuck for a while now. Please help and show work because I would like to know how to do these. Thanks!!

Guest Apr 29, 2019

#1**+1 **

First one

Distance from (0,1) to(4,1) = 3

Distance from (0,1) to ( 2,4) = sqrt [ ( 2 - 0)^2 + (4-1)^2 ] = sqrt (2^2 + 3^2) = sqrt(13)

Distance from (4.1) to ( 2.4) = sqrt [ (4-2)^2 + (4-1)^2 ] = sqrt (2^2 + 3^2 ) = sqrt (13)

So....perimeter = 3 + 2sqrt(13) units

Area = base * height / 2 = ( 4 * 3) / 2 = 12 /2 units^2 = 6 units^2

Based on this....do you want to try the second one ???

CPhill Apr 29, 2019

#2**0 **

Great. Thank you. I'm going to try the second one now. It's probably going to take me a few minutes though.

Guest Apr 29, 2019

#4**0 **

Okay so... I don't think I did this correctly. I got 0 for the perimeter and 6^2 units for the area.

Guest Apr 29, 2019

#5**+1 **

OK.....probably not 0 for the perimeter.....look at this

Easy to find the distance from (1,1) to (1,4) = 3 and from (1,1) to (5,1) = 4

Distance from (1,4) to(5,1) = sqrt [ ( 5 - 1)^2 + (4 - 1)^2 ] = sqrt [ 4^2 + 3^2 ] = sqrt(25) = 5

So....the perimeter = 3 + 4 + 5 = 12

You got the area correct...= 6 units^2......good job !!!!

CPhill
Apr 29, 2019