The area is 38.5 cm square
The circumference is 22 cm
5/3 is as simplified as it gets :)
The area of the trapezoid is 37.5 square inches.
Answer:
Step-by-step explanation:
Suppose that the side length is s. Imagine that one side is level. Draw a vertical line through the top vertex perpendicular to the base (level side). Label this vertical line "h." Then h and s are related as follows:
√3 h
sin 60 degrees = ------- = --------
2 s
s√3
and so h = the height of the triangle = -----------
2
The area of this triangle is (1/2)(base)(height), which here is:
(1/2)(s/2)( s√3 /2), or
(s^2)√3
A = ---------------
8
Answer:
-40
Step-by-step explanation:
(-7)(5)-5=-35-5=-40
