Answer:
324
Explanation:
I think that 3x108 is 324 so I think the height is 324 and the base is 108.
Base: 18cm
height: 12 cm
Let the ratio be x
base = 3x height = 2x
area of triangle = 108
⇒ 21 ×2x×3x=108
⇒3x 2 =108
⇒x 2 =36
x=6
Base=3x=3×6=18cm
height=2x=2×6=12cm.
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