ASSESSMENT
Directions: Read each item carefully and write the letter of your answer on a sheet of
paper.
1. If the first three angies of a quadrilateral measures 54°, 86°, and 70° respectively.
What is the measure of the fourth angle?
a. 150°
b. 160°
c. 170°
d. 1800
2. What is the sum of the measures of the interior angles of a coin, which is in the
shape of an octagon?
a. 880°
b. 980°
c. 1,080
d. 1,180°
3. In Figure 1, már = 140° and mas = 1550. Find mát.
a. 25°
b. 400
c. 65°
d. 900
140°
Figure 1
S
155°
4. What is the measure of each interior angle of a regular dodecagon?
a. 120°
b. 1300
c. 140°
d. 1500
5. If the measure of each interior angle of a regular polygon is 108", which of the
following is the measure of its exterior angles?
a. 36°
b. 720
c. 1080
d. 1440

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