The largest side of a triangle is 3 more than twice the smallest side. The third side is 8 more than the smallest side. What are the lengths of each side if the perimeter is 33?

2 Answers
Jan 23, 2017

#14, 5 1/2 and 13 1/2#

Explanation:

Let say #x# is a smallest side.

Therefore,
#(2x+3)+(x)+(x+8)=33#
#4x+11=33#
#4x=33-11#
#x=22/4=11/2#

Therefore the length of each sides are #(2(11/2)+3), (11/2), and (11/2+8)#

#(22/2+6/2),(11/2), and (11/2+16/2)#
#28/2=14, 11/2, and 27/2#

#14, 5 1/2 and 13 1/2#

to check it,

#11/2+28/2+27/2=66/2=33#

The sides of the triangle are #5.5,13.5,14# units each.

Explanation:

Let #s_1 , s_2,s_3 # are the smallest,middle and largest side
of the triangle respectively.
By condition given , #s_1 + s_2 +s_3 =33 ; s_3=2s_1+3 ; s_2=s_1+8#
#:. s_1+(s_1+8) +(2s_1+3)=33 or 4s_1+11=33 or 4s_1=22 or s_1=22/4=5.5 :. s_2=5.5+8=13.5 ; s_3=2*5.5+3=11+3=14#

The sides of the triangle are #5.5,13.5,14# units each. [Ans]