ACTIVITY 1

Directions: Choose the letter of the correct answer. Write your answers on your answer sheet.

1. It is the sum of all areas of lateral faces and bases of a solid figure.

A. Base area C. Surface area
B. Lateral area D. None of the above

2. A flat pattern that you can fold to form a solid figure is called a/an

A. area
B. edge
C. face
D. net

3. The surface area of a cube is times the area of its face.

A. three
B. four
C. five
D. six

4. In a cylinder, the edge or length of the lateral surface is equal to of its base.

A. circumference
B. perimeter
C. radius
D. width

5. The lateral surface of a cylinder when it is unrolled will be

A. rectangle B. trapezoid
C. triangle D. All of the above

6. The solid figure that has surface area equivalent to four times the areas of circles of
the same radius is

A. cube
B. cone
C. tetrahedron
D. sphere

7. To get the lateral area of a cone, we use the formula

A. L.A.=r2
B. L.A.Emers
C. L.A.-rh
D. . L.A.-rh

8. The sum of the area of the square base and four triangular lateral faces is the
surface area of

A. cube
B. rectangular prism
C. pyramid
D. cone

9. The unit for surface area is

A. cubic unit B. linear unit
C. square unit D. weight unit

10. A cone has a radius of 5 cm and slant height of 7.1 cm. What is the unit of measure appropriate for its surface area?

a. square millimeter (mm2)
C. square decimeter (dm2)
b. square centimeter (cm2)
d. square meter (m2)

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