Answered

IDNStudy.com, ang iyong gabay para sa maaasahan at mabilis na mga sagot. Ang aming komunidad ay handang magbigay ng malalim at maaasahang mga sagot, anuman ang kahirapan ng iyong mga katanungan.

The length and the width of the rectangle is in ratio3:5. Its area is 375m^2. Find its perimeter.
Pls. Write the whole solutions.


Sagot :

 A_________________.B            ABCD rectangle
   |                                  |              BC/AB=3/5
   |                                  |              A ABCD=375 m²
   |_________________|             ---------------------------------------
  D                                 C            P ABCD=??
--------------------------------------------------------------------------------------
BC/AB=3/5⇒BC=3AB/5
A=AB·BC
AB·3AB/5=375
3AB²/5=375
3AB²=1825
AB²=625
AB=25 m
BC=375:25
BC=15 m
P ABCD=2(AB+BC)
P ABCD=2(25+15)
P ABCD=2·40
P ABCD=80 m