Answer:
24 square units
Step-by-step explanation:
For Trapezoid
a = 8
b = 4
h = 4
Area of Trapezoid
<em><u>A = a + b/2 * h</u></em>
= 8 + 4/2 * 4
= 12/2 *4
= 6 * 4
= 24
Thus, the area of the trapezoid is <em><u>24 square units</u></em>
Answer:
Step-by-step explanation:
The information that we kow about the shape of the aquarium:
length:
width:
when the reef is submerged, the water level rises 3 feet. The volume that those 3 ft represent in the aquarium will be the volume of the reef.
Thus, we calculate the volume of water "addition" with the same length and width as the aquarium but with a deep of 3 feet (thi is because the reef caused the water to rise 3 feet), and this is the volume of the reef that was added to the aquarium:
The volume of the stone is
Answer: 1, 2, 5, 10
Step-by-step explanation:
<u><em>1</em></u> x 30 = 30
<u><em>1</em></u> x 20 = 20
<u><em>2</em></u> x 15 = 30
<u><em>2</em></u> x 10 = 20
<u><em>5</em></u> x 6 = 30
<u><em>5</em></u><em> </em>x 4 = 20
<u><em>10</em></u> x 3 = 30
<u><em>10</em></u> x 2 = 20