DAE MATH-113

Applied Mathematics-I

Chapter 12 : Area of Polygons

DAE Common Technologies | First Year

Multiple Choice Questions

Chapter:12 (Area of Polygons)

Question 1:

A seven sided figure is called

Square octagon heptagon pentagon

Question 2:

If a is the side of polygon of n sides, then its area is

\({\frac{n{a^2}}{4}}Cot{\frac{180^0}{n}}\) \({\frac{n{a^2}}{3}}{\frac{180^0}{n}}\) \({\frac{n{a^2}}{2}}Sin{\frac{360^0}{n}}\) None of these

Question 3:

Area of a regular polygon of n sides whose radius of circumscribed circle is 'R' is

\({\frac{n{R^2}}{2}}Sin{\frac{360^0}{n}}\) \({\frac{n{R^2}}{n}}Sin{\frac{360^0}{n}}\) \({\frac{R^2}{2}}Cot{\frac{180^0}{n}}\) None of these

Question 4:

Decagon have number of sides

8 9 10 12

Question 5:

Area of a regular hexagon of side 'a' is

\(\frac{\sqrt{r}}{4}\) \({\frac{2}{\sqrt{3}}}{a^2}\) \({\frac{3\sqrt{3}}{4}}{a^2}\) \(2{\sqrt{3{a^2}}}\)

Question 6:

The perimeter of a regular hexagon is 12 cm, its area is

10.932 sq. cm 10.392 \(cm^2\) 10.239 \(sq^2\) 10.329 \(cm^2\)

Question 7:

Each angle of an octagon is

\(60^0\) \(120^0\) \(135^0\) \(150^0\)

Question 8:

Area of regular octagon of side 'a' is

4.2884 \(a^2\) 4.24884 \(a^2\) 4.8284 \(a^2\) 4.1884 \(a^2\)

Question 9:

A regular polygon having infinite number of sides is called

Octagon hexagon circle heptagon

Question 10:

Area of regular hexagon circumscribed about a circle of radius 2 cm is

\(\frac{24}{\sqrt{3}}\) \(\frac{20}{\sqrt{3}}\) \(\frac{36}{\sqrt{3}}\) \(\frac{2}{\sqrt{3}}\)

NOTE
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INSTRUCTOR
MUHAMMAD BIN JAMEEL
BSC ENGG. CIVIL

PBTE | DAE | MATH-113 APPLIED MATHEMATICS-I | MCQs | Chapter : 12 Area of Polygons