the sides of a triangle ,in centimeters are x,2x-3 and 2x+5. the perimeter of the triangle is 57cm.work out the length of three sides of the triangle
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Answered by
6
Answer:
Perimeter of Triangle = sum of all sides
Given, x + 2x-3+2x+5 =57
5x+2 = 57
5x =57 -2
5x =55
x = 55 ÷ 5 = 11
x =11 cm
2x -3 = 2*11 -3 = 22 - 3 = 19 cm
2x+5 = 2*11 +5 =22 +5 =27 cm
Answered by
1
Answer:
19cm, 27cm
Step-by-step explanation:
x+2x+3+2x+5
=>5x+2= 57
=>5x=55
x=55/5 = 11
=> 2x-3 = 2*11-3=19
=> 2x+5 = 2*11+5=27
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