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15. Based on the figure above, which polygons are congruent?

a Band

b. G and H

c. B and E

d. Band 1

16. What polygon can you form by combining B, C and D?

a hexagon

b. octagon

c. nonagon

d. decagon

17. Which of the following form a pentagon?

a. A, B and C

b. G and H

c D and F

d. Cand I

18. What do you call a closed plane figure that is not made up of line segments?

a triangle b. circle

C. octagon

d. sphere

19. How do we name a circle?

a by its radius b. by its diameter c. by its center d. by its side