Assessment No. 1 | Chapter 1 - Plane Figures

1.

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2 mins

1 pt

Find the measure of an interior angle of a regular tridecagon.

2.

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2 mins

1 pt

Find the sum of the interior angles of a regular triacontakaitetragon.

3.

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2 mins

1 pt

Name the polygon with 24 number of sides.

4.

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2 mins

1 pt

How many sides does "icosikaihenagon" have?

5.

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5 mins

1 pt

The number of diagonals of a regular polygon is 35. Find the area of the polygon if its apothem measures 10 centimeters.

6.

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5 mins

1 pt

The ratio of areas between two similar triangles is 1:4. If one side of the smaller triangles is 2 units, find the measure of the corresponding side of the other triangle.

7.

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5 mins

1 pt

If ABCDE is a regular pentagon and diagonals EB and AC intersect at O, then what is the degree measure of $\angle$ EOC?

8.

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2 mins

1 pt

Is it possible to form a triangle with sides 20, 30, and 50 units?

9.

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5 mins

1 pt

If one side of a triangle is 20 units and the perimeter is 72 units, what is the maximum area that the triangle can have?

10.

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5 mins

1 pt

Refer to the image.

11.

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5 mins

1 pt

Find the area and perimeter of a square whose diagonal is 15 units long.

12.

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5 mins

1 pt

If ABCD is a rhombus, AC = 4, and ADC is an equilateral triangle, what is the are of the rhombus?

13.

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5 mins

1 pt

Find the diagonal of the rectangle inscribed in the isosceles right triangle shown in the figure if the upper two vertices of the rectangle lie at the midpoints of the two legs of the triangle.

14.

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2 mins

1 pt

If the diagonal length of the side of a square is tripled, how much is the increase in the perimeter of that square?

15.

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5 mins

1 pt

The area of the rhombus is 156 $m^2$ . If its shorter diagonal is 13 $m$ , find the length of its longer diagonal.

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