SOLUTION: This arrow can be thought of as two touching parallelograms (the arrow head) joined to an irregular pentagon. What is the area of the pentagon if the total arrow area is 1000cm². T
Algebra ->
Surface-area
-> SOLUTION: This arrow can be thought of as two touching parallelograms (the arrow head) joined to an irregular pentagon. What is the area of the pentagon if the total arrow area is 1000cm². T
Log On
Question 1117863: This arrow can be thought of as two touching parallelograms (the arrow head) joined to an irregular pentagon. What is the area of the pentagon if the total arrow area is 1000cm². The top and bottom edges of the arrow are 12cm in length and are 40cm apart. Give your answer in square centimetres. Answer by addingup(3677) (Show Source):
You can put this solution on YOUR website! Area of the parallelogram = bh. Each of your parallelograms is 12 cm long and 20 cm high:
2(12 x 20) = 480 cm²
Total area of the arrow: 1000 cm²
Subtract the arrowhead:. .480 cm²
. . . . . . . . . . . .----------------
Area of the pentagon . : 520 cm²
:
See picture below
: