Question

50 POINTS Really need help, answer a. b. and c.

A scale drawing of an American flag is 10 inches long and 6 inches tall. The actual flag is 3 feet tall.

a. What is the scale of the drawing?
b. Find the perimeter and area of the American flag in the scale drawing.
c. Find the actual perimeter and area of the American flag.

Answer 1

a) 1 in : 6 in

b) P=32 inches

A =60 inches ^2

c) P= 16 ft

A = 15 ft ^2

Explanation:

The drawing is 6 inches tall, while the real flag is 3 ft tall

Change ft to inches

3 ft * 12 inches/1ft = 36 inches

drawing : real life

6 36

Divide each by 6

1 6

The scale is 1 to 6

So for every 1 inch on the drawing, there is 6 inches in real life

b) P= 2(l+w) = 2(10+6) = 2(16) = 32 inches

A = l*w = 10*6 =60 inches ^2

C)

The drawing is 10 inches by 6 inches

Multiply by the scale factor of 6

Real life is 60 inches by 36 inches

Divide by 12 to get back to ft

5ft by 3 ft

P= 2(l+w) = 2(5+3) = 2(8) = 16 ft

A = l*w = 5*3 =15 ft ^2