Answer:
16 ft²
Step-by-step explanation:
The complete question is attached.
A trapezoid is a quadrilateral (has four sides) with one a parallel base. The base angles and the diagonals of an isosceles trapezoid are equal.
The area of a trapezoid = [(sum of the parallel bases) / 2] * height of the trapezoid.
Given that the parallel bases are 3 ft and 5 ft, while the height of the trapezoid is 4 ft. Hence:
The area of a trapezoid = [(3 + 5)/2] * 4
The area of a trapezoid = 16 ft²
Subtract 12 on both sides and both 12s cross out leaving -3m= 6 and then divide -3 on both sides and your answer should be m=-2
Answer:
21 cups
Step-by-step explanation:
Imagine it in the ratio 3:12
To get from 12 to 84 you need to multiply by seven so to get to the number of cups you need you must also multiply 3 by 7 to get 21.