Unit 4Cross Section, Angle Pair and Area of a circle

Which best describes the two-dimensional shape created by the cross-section shown.

• a. Circle

• b. Ellipse

• c. Rectangle

• d. triangle

which best describes the two-dimensional shape created bt the cross-section shown on the square.

• a. tringle

• b. rectangle

• c. square

• d. trapezoid

Which best describes the two-dimensional shape created by the cross-section shown on the sphere.

• a. oval

• b. circle

• c. ellipse

• d. sphere

4. Find the circumference of the circle with the diameter of 18in.

• a. 54 in

• b. 56.52 in

• c. 55 in

6. Calculate the area with diameter of 10.5ft

• a. 86.55 sq. ft  

• b. 32.97 sq. ft

• c. 65.94 sq. ft

• d. 31.4 sq ft

7. Calculate the area of the circle with a diameter of 26cm

• a. 81.60 cm

• b. 81.64 cm

• c. 530.66 sq.cm

• d. 163.28 sqcm

What is the value of x?

• a. 37

• b. 72

• c. 108

• d. 18

What are complementary angles?

• a. Angles that add up to 180°

• b. Angles that add up to 90°

• c. Angles that are equal to each other

• d. Angles that are opposite of each other when lines intersect.

13. What are supplementary angles?

• a. Angles that add up to 180°

• b. Angles that add up to 90°

• c. Angles that are equal to each other

• d. Angles that are opposite of each other when lines intersect