Saved Bookmarks
| 1. |
Perimeter of a square EFHI where E(-2,0) F(3,0) H(3,5) I(-2,5) |
|
Answer» using distance formula to find the sides of squareEF=√{3-(-2)}^2+(0-0)^2EF=√(5)^2+0EF=√25EF=5we know that sides of a square are equal then th distance of sides EF=5 FG=5 GH=5 HE=5PERIMETER= sum of all sides5+5+5+5=20ans Sin A = 3/4 =perpendicular /base P=3 H=4 We can find tha base by pythagoras theorem in triangle ABC BA²=AC²-BC² BA²=4²-3² BA²=16-9 BA²=7 BA=√7 SecA = hypotenuse /base SecA=4/√7 First we find distance between EF, FH, HI and IE respectively after than add the distance all |
|