Classify the statement:  The Heron’s theorem can be applied to an equilateral triangle.

Decide which form of valid or invalid reasoning is used:   This gem is either a diamond or it is a zircon. This gem is not a zircon.  This gem is a diamond.   a) valid- modus ponens b)   valid – modus tollens (law of contraposition) c)    valid- disjunctive syllogism d) valid- transitivity e) invalid- reasoning from the converse f) invalid- reasoning from the inverse

Find the area of the following (using sq.cm).  

Classify the statement:  Every isosceles triangle is an equilateral triangle.

Suppose the radius of the circle is 10 cm.  Suppose the measure of the central angle ACB is 125 degrees.   Find the length of the corresponding arc AB (using cm).

In a triangle ABC the following is given:

Lines l and m are parallel.   Given the measure of the angle A is 130 degrees, find the measure of the angle E (using degrees).

Classify the statement:  The supplemental angle of an obtuse angle must be obtuse.

Lines l and m are parallel.   Given the measure of the angle A is 130 degrees, find the measure of the angle C (using degrees).

Find the perimeter of the following (using inches):