Find the perimeter of the trapezoid.
a) 18 cm
b)
c)
d)
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Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

Select the correct answer. given: ∆abc with prove: statement reason 1. given 2. ∠cab ≅ ∠edb ∠acb ≅ ∠deb if two parallel lines are cut by a transversal, the corresponding angles are congruent. 3. ∆abc ~ ∆dbe aa criterion for similarity 4. corresponding sides of similar triangles are proportional. 5. ab = ad + db cb = ce + eb segment addition 6. substitution property of equality 7. division 8. subtraction property of equality what is the missing statement in the proof? scroll down to see the entire proof.

Three lines meet at a point. set up and solve an equation to find the value of (a) is your answer reasonable? explain how you know