Assuming the vertex of the triangle shown is the center of the pentagon, and the line segment shown is an altitude of the triangle:
If we join the center of (the circumscribed circle and of) the pentagon to the 5 vertices, 5 isosceles triangles are formed, all congruent to the one shown in the figure. It is clear that these triangles are congruent, so to find the area of the pentagon, we find the area of one of these triangles and multiply by 5.
The base of the triangle is 22.3 in, and the height is 15.4 ins, thus the area of the pentagon is:
5(Area triangle)=5*[(22.3*15.4)/2]=<span>858.55 (square inches).
Answer: </span>858.55 (square inches).
so
so
take differential calculus
you will find x then y
Answer:
Option A
Step-by-step explanation:
the area of the parallelogram is 22.05
Answer:
200.5 ft
Step-by-step explanation:
You get the area of the wall: 18*12.5=225
You get the area of the door: 7*3.5=24.5
Finally, you subtract the area of the wall from the area of the door and get: 200.5 as your final answer.
Hope this helped!!