Find the area of the figure sides meet at right angles 8 cm, 3cm, 4cm, 5cm, 9cm​

umm is it a quadrilateral

Step-by-step explanation:

if it's 8cm, 3m, 4cm, 5cm, and 9cm it's probably a quadrilateral

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,