For the given figure both triangles are equilateral triangles.
(a) Describe the rotational symmetries of the figure or explain why none exist.
(b) Sketch the lines of symmetries on the figure or explain why none exist.
(a) There are five nontrivial rotational symmetries about point A. 60°, 120°, 180°, 240°
and 300°
(b) There are six lines of symmetry as shown here:
You might also like to view...
Simplify the fraction.
A. 
B. 
C. 
D. 
Solve the problem.There are currently 78 million cars in a certain country, increasing exponentially by 1.9% annually. How many years will it take for this country to have 99 million cars? Round to the nearest year.
A. 11 yr B. 13 yr C. 160 yr D. 4 yr
Write the number in expanded form.7020
A. 70,000 + 2000 B. 700 + 2 C. 702,000 D. 7000 + 20
Use the graph of the rational function shown to complete the statement.
As x?+?, f(x)? ?
A. -? B. +? C. 1 D. 0