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Understanding Quadrilaterals

Short Answer Type

51.

Examine the table. (Each figure is divided into triangles and the sum of the angles deduced from that).

Figure

Side

Angle sum

180°

2 x 180°

= (4 - 2) x 180°

3 x 180°

= (5 - 2) x 180°

4 x 180°

= (6 - 2) x 180°

What can you say about the angle sum of a convex polygon with number of sides?

n

78 Views

52.

What is a regular polygon?

State the name of a regular polygon of

(i) 3 sides (ii) 4 sides (iii) 6 sides

160 Views

Long Answer Type

53.

Find the angle measure x in the following figures.

152 Views

54.

133 Views

Short Answer Type

55.

Find the measure of x in the figure.

151 Views

56.
Take a regular hexagon as shown in the figures:

What is the sum of the measures of its exterior angles x, y, z, p, q, r?

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