a rectangle is as twice as long as it is tall. Its height is 5 centimeters. What is its area in square centimeters?
A) 25 cm
B) 30 cm
C) 12.5 cm
D) 50 cm
B) 30 cm
Since the height of the rectangle is 5 centimeters, the length must be twice as long, which is 10 centimeters.
The area of a rectangle is calculated by multiplying the length by the height, so in this case, the area would be 5 cm * 10 cm = 50 square centimeters.