Assignment No. 1

What is the symbol of degree?

Answer explanation

a. \pi

b. \angle

c. \degree

• 4

• 6

• 8

Answer explanation

Tetragon - 90 degrees

Hexagon - 120 degrees

Octagon - 135 degrees

Classify this polygon

• Regular

• Irregular

Answer explanation

It has the same measurement of sides and angles.

• Pentagon

• Quadrilateral

• Hexagon

Answer explanation

Quadrilateral has 4 sides.

Pentagon has 5 sides.

Hexagon has 6 sides.

Convex or Concave?

• Convex

• Concave

Answer explanation

Answer explanation

INTERIOR + EXTERIOR = 180/degree

How to find the sum of all angles in a polygon?

What is the sum of all angles of a pentagon?

• 540

Answer explanation

S = (5-2) 180

= 3 (180)

S = 540

What is the measurement of each interior

angle of a pentagon?

• 88/degree

• 98/degree

• 108/degree

Answer explanation

meIA = S/n

where; S = 540 n = 5

S/n = 540/5

= 108

What is the measurement of each exterior

angle of pentagon?

• 72/degree

• 18/degree

• 252/degree

Answer explanation

meEA = 360/n

where; n = 5

meEA = 360/n = 360/5

= 72