1. PART I – GEOMETRY OF SHAPE AND SIZE
Activity No. 1
Undefined Terms
A. 1. T B. 1. line
2. T segment
3. T 2. ray
4. T 3. line
5. T 4. plane
5. ray
C. 1. line 6. two
2. point 7. three
3. plane 8. segment
4. collinear 9. ray
5. infinite 10. coplanar
Activity No. 2
Angles
1. 43 º 6. 90 º
2. 47 º 7. 120 º
3. 35 º 8. 105 º
4. 25 º 9. 30 º
5. 30 º 10. 80 º
Activity No. 3
Triangles
I. A. 2 O
. H
1. 3
RO .

2. R
H
B.
1. R
2. O
3. H
C.
1. <R
2
. <O
3. <H

3. II. 1. T III. 1. Right
2. T triangle
3. F 2.
4. T Scalene triangle
5. T 3.
Equilateral triangle
Activity No. 4
Polygon
A. 1. non-convex
2. convex
3. convex
4. non-convex
5. non-convex
B. 1. hexagon
2. A,B,C,D,E,F,G
3. AB,BC,CD,DE,EF,FG,GA
4. AE and BD
5. AB and BC
6. <A and <B; <F and <E
7. <A and <E; <F and <B
8. AB and FE; AB and ED
9. AF, AE, BE, BD
10. Yes, the polygon is regular
Activity No. 5
Circle
A. 1. diameter 7. minor arc
2. chord 8. chord
3. radius 9. point of
4. secant line tangency
5. tangent line 10. major arc
6. center

4. B. 1. T
2. T
3. T
4. T
5. F
C. 1. AB 7. FC
2. PW 8. WFC and
3. N WCA
4. P 9. WB
5. M 10. C
6. FWC and
FAC
Activity No. 6
Perimeter and Circumference
A. 1. 36 B. 1. 14.44 cm.
2. 64 2. 92.2 in.
3. 23 3. 39.56 in.
4. 46 4. 376.8 cm
5. 55 5. 190.60 cm
Activity No. 7
Area of Polygon
1. 153.86 cm
2. 312 inches
3. 12 inches
4. 180 m
5. 14 m
Activity No. 8
Surface Area of Solid
1. 24

5. 2. 100
3. 40.69
4. 60
Activity No. 9
Volume of Solid
A. 1. 11.56 2. 8.39
2. 130 3. 113.04
3. 267.95 liters
4. 0.13 4. 9.14 h
5. 162 5. 2700 liters
B. 1. 880

6. PART II – GEOMETRIC RELATIONS
Activity 10
Measures of Line Segments
A. 1. 4 B. 1. 8
2. 2 2. 8
3. 4 3. 5.5
4. 4 4. yes
5. 6 5. 25
Activity No. 11
Angle Bisector
1. 90
2. 120
3. 75
4. 90
Activity No. 12
Angle Pairs
A. 1. <POH, <HOL, <LOF, <FOP
2. <POC & <COF; <FOR & <ROL; <LOI & <
IOH; <HOW & <WOP
3. <COP & <IOL; <POW & <ROL; <WHO & <
FOR; <HOI & <COF
4. line PL & line FH
5. <FOH & <POL
B. 1. 60; 30
2. 50; 40
3. 30; 60
4. 45; 45
5. 55; 35
C. 1. 30; 60
2. 36.144
3. 33.75; 56.25
4. 45; 45
5. 72; 108

7. Activity No. 13
Perpendicular Lines
A. 1. a. 100º
b. 80 º
c. 100 º
d. 80 º
2. <2 & <4; <1 & <3
3. <2 & <1; <1 & <4; <4 & <3; <3 & <2
4. <2 & <1
B. 1. a. 90 º
b. 62 º
c. 90 º
d. 28 º
2. <RPB = <APS
3. <BPA = <APS
Activity No. 14
Angles Formed by Parallel Line Cut by
Transversal
A. 1. <8, <7, <1 & <2
2. <4, <5, <3, & <6
3. <5 & <3; <4 & <6
4. <7 & <1; <8 & <2
5. <8 & <7; <5 & <6; <4 & <3; <1 & <2
6. <8 & <6; <7 & <5; <4 & <2; <3 & <1
7. <7 & <6; <3 & <2; <8 & <5; <4 & <1
8. <8 & <7; <5 & <6; <4 & <3; <1 & <2; <2 & <3;
<6 & <7; <8 & <5; <4 & <1
9. <8 & <7; <5 & <6; <4 & <3; <1 & <2; <2 & <3;
<6 & <7; <8 & <5; <4 & <1
10. <6 & <3; <5 & <4
B. a. 6 f. 6
b. 174 g. 6
c. 174 h. 6
d. 174 i. 168
e. 174 j. 12

8. Activity No. 15
Relations Among the Angles & sides of a
Triangle
A. 1. x
2. /
3. x
4. /
5. /
B. 1. a. 115 4. a. 40
b. 65 b. 115
2. a. 55 5. a. m<1= 50
b. 50 b. m<2= 0
3. a. 115 c. m<3 = 0
b. 65 d. m<3 = 130