Join the center of the hexagon with the 2 base angles.
An equilateral triangle, with side length x, is formed.
(remark: a regular hexagon is made up of 6 equilateral triangles with equal length)
The height

forms 2 congruent right triangles with :
hypotenuse= x, side_1=x/2, and side_2=

.
From the pythagorean theorem we have:




thus, x=4.
The area of the triangle is 1/2 * 4 *

=6.93 (mm squared)
The area of the hexagon is 6* the area of the triangle = 42 (mm squared)
Answer: a. 42 (mm squared)
Answer:
-8
+10p-3
Step-by-step explanation:
Answer:
28
Step-by-step explanation:
The attached figure shows 7 triangles (counting the original 2). Each has degree-4 rotational symmetry about the center of the figure, so there can be 7×4 = 28 triangles.
Answer:
70cm
Step-by-step explanation: