Find the value of x and y and hence the perimeter of the following parallelograms and rectangles. ( all sides are in cm )
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opposite sides of parallelogram are equal so,
5x - 2 = 3x + 2
5x - 3x = 2 + 2
2x = 4
x = 4/2
x = 2
AB = 3x+2 = 8cm
CD = 8cm
3y + 3 = 2y + 4
3y - 2y = 4 - 3
y = 1
AD = 3y+3 = 6cm
BC = 6cm
perimeter = sum of all sides
= AB + CD + AD + BC
= 8 + 8 + 6 + 6
= 28cm
5x - 2 = 3x + 2
5x - 3x = 2 + 2
2x = 4
x = 4/2
x = 2
AB = 3x+2 = 8cm
CD = 8cm
3y + 3 = 2y + 4
3y - 2y = 4 - 3
y = 1
AD = 3y+3 = 6cm
BC = 6cm
perimeter = sum of all sides
= AB + CD + AD + BC
= 8 + 8 + 6 + 6
= 28cm
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