The perimeter of a triangle is 44 cm. One of its sides is 4 cm smaller than the other and twice as big as the third side. What are the measure of the sides?
2 Answers
Nov 18, 2017
Explanation:
#"let the third side "=x#
#rArr" the other 2 sides are "2x" and "2x+4#
#"perimeter "=x+2x+2x+4=44#
#rArr5x+4=44#
#"subtract 4 from both sides"#
#rArr5x=40#
#"divide both sides by 5"#
#rArrx=8#
#"x=8to2x=16to2x+4=20#
#"check "8+16+20=44to"True"#
#"the 3 sides are "8,16" and "20" cm"#
Nov 18, 2017
Explanation:
Say the "other" side is
Add them up:
Since the second side is