the perimeter is of a triangle is 76. side a of the triangle is twice as long as side b. side c id 1 cm longer than side a
2006-10-09 13:31:24 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Perimeter is sum of the sides
if one side is a
then as per the question
other two sides are a/2 and a+1
so a + a/2 + a+1 = 76
2.5 a = 75
a = 30
so b is 15 and c is 31
so the three sides are 30,15 and 31
2006-10-10 00:48:26 · answer #1 · answered by ksj_goblin 3 · 0⤊ 0⤋
x + x/2 +(x+1) = 76
2006-10-09 20:35:16 · answer #2 · answered by rocketman9070 5 · 0⤊ 0⤋
A = 2B
so B = 0.5 A
C = A + 1
Equation:------ A + B + C = 76
Substitution: --A + 0.5A + A + 1 = 76
Add/Subtract: 2.5A = 75
Division:------- A = 30
Equation:---- B = 0.5A
Substitution:-B = (0.5)(30)
Multiplication:B = 15
Equation:----C = A + 1
Substitution:C = 30 + 1
Addition:-----C = 31
2006-10-09 20:45:01 · answer #3 · answered by jackalrama 2 · 0⤊ 0⤋
p=76
p=a+b+c
a=2b
c=a+1 or c=2b+1
p=2b+b+2b+1
p=76=5b+1
5b=75
b=15
a=2b=30
c=a+1=31
a=30
b=15
c=31
2006-10-13 12:26:35 · answer #4 · answered by yupchagee 7 · 0⤊ 0⤋
Agree with the abvoe answer
2006-10-09 20:35:12 · answer #5 · answered by pathowiz 3 · 0⤊ 0⤋
A=2b
C=2b+1
B=B
5b+1=76
5b=75
b=15
a=30
c=31
A little complicated e-mail me if you have any questions...
2006-10-09 20:34:13 · answer #6 · answered by Anonymous · 0⤊ 0⤋