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Answer:
<h2>The rate is 15 minutes per meter.</h2>
Step-by-step explanation:
It takes 9 minutes to fill a depth of meters.
Filling meters take 9 minutes time.
Filling 3 meters of the aquarium takes = 45 minutes time (Multiplying by 5 both the numbers).
In order to<u> fill 1 meter of the aquarium it will take </u><u> minutes</u> (Dividing by 3 both the numerical values).
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Answer:
31.18 units²
Step-by-step explanation:
The diagonals bisect the angles.
⇒ Angle at half the rhombus = 120 ÷ 2 = 60°
Both sides of the triangle are 6 units:
⇒ Half the rhombus is also an isosceles triangle.
⇒ the other angle is also 60°.
Both angles are 60°,
⇒ the third angle is 180 - 60 - 60 = 60°
⇒ it is an equilateral triangle.
Area of an equilateral triangle = √3/4 (6)² = 15.59 units²
The rhombus is made up of two of the triangles.
⇒ Area of the rhombus = 15.59 x 2 = 31.18 units²