21) Find the area of a parallelogram with base of 16
Inches and a height of 11 inches

176 in²

Step-by-step explanation:

The area (A) of a parallelogram is calculated as

A = base × height = 16 × 11 = 176 in²

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,