The height of a parallelogram is 4 times the base. the base measures 3 1/2 ft find the area off the parallelogram

Area = 49 ft²

Step-by-step explanation:

The formula for area of a parallelogram is A = bh, where b is the base, and h is the height.  Here, the base is given and the height is 4 times the length of the base

Here b = 3 1/2, and h = 4(3 1/2) = 14      

             3 1/2 becomes 7/2 as an improper fraction,  4(7/2) = 28/2 = 14

So the area is

A = 14(3 1/2)

A = 14(7/2)

A = 98/2

A = 49 ft²

d. 145*2 is 290 than the total angle is 360 then minus 290 then divide by two

c

step-by-step explanation: easy math