Answer:

13) What is the measure of the third angle given the angles 48" and 51", if the sum of its interior is 180º?

a. 48°

b.51°

c. 81°

d. 99°

14) What is the measure of the fourth angle of a quadrilateral with angles 639, 101", 97”, if the sum of its interior is 360°?

a. 48°

b.51°

c. 81°

d. 99°

15) A hexagon with angles 108", 147",123, 116', 154",what is the fifth angle when the sum of its interior is 720º.

a. 72

b. 73°

c. 74°

d. 75°

16) What is the measurement of 21 in the figure?

a. 40°

b. 110°

c. 70°

d. 80°

NOTE:

I get these answer by adding the given angles in the polygon and after i get the answer i subtract it with the sum of its interior angles.

LETS STUDY

Answer:

13. C

14. D

15. A

16. malabo po kc ung angle nung nasa loob ng triangle, pero ganito po gagawin dun

add mo ung 2 angle sa loob ng triangle, then minus mo sa 180 para makuha ung angle 2, tas add mo ung angle 2 ska ung angle na nsa taas ng triangle, un ang measurement ng angle 1