Area of trapezoid is 135 cm2. Sides a, c and height h are in a ratio of 6:4:3. How long are a,c and h? Make calculation.

Correct answer:

a =  18 cm
c =  12 cm
h =  9 cm

Step-by-step explanation:

a:c:h=6:4:3 135=(a+c)h/2=(6x+4x)3x/2 135=(6x+4x)3x/2 270=10x3x 270=30x2 x2=9 x=9=3 cm  a=6x=18 cm
c=4x=12 cm
h=3x=9 cm

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