M.C.Q

MCQ 11 Mark

Write the correct answer in the following: With the help of a ruler and a compass it is not possible to construct an angle of:

A
$37.5^\circ$
✓
$40^\circ$
C
$22.5^\circ$
D
$67.5^\circ$

Answer

Correct option: B.

$40^\circ$

With the help of a ruler and a compass, we can construct the angels, $90^\circ , 60^\circ , 45^\circ , 22.5^\circ , 30^\circ $ etc. and its bisector of an angle. so it is not possible to construct an angle of $40^\circ$

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MCQ 21 Mark

Write the correct answer in the following: The construction of a triangle $ABC$, given that $BC = 6\ cm$, $\angle\text{B}=45^\circ$ is not possible when difference of $AB$ and $AC$ is equal to:

✓
$6.9\ cm$
B
$5.2\ cm$
C
$5.0\ cm$
D
$4.0\ cm$

Answer

Correct option: A.

$6.9\ cm$

We are given $BC = 6\ cm$ and a base angle $\angle\text{B}$ the difference between other two sides $AB$ and $AC$ should be equal to or greater than $BC$.

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MCQ 31 Mark

Write the correct answer in the following: The construction of a triangle $ABC$, given that $BC = 3\ cm$, $\angle\text{C}=60^\circ$ is possible when difference of $AB$ and $AC$ is equal to:

A
$3.2\ cm$
B
$3.1\ cm$
✓
$3\ cm$
D
$2.8\ cm$

Answer

Correct option: C.

$3\ cm$

We are given $BC = 3\ cm$ and a base angle $\angle\text{C},$ the difference between other two sides $AB$ and $AC$ should not be equal to or greater than $BC$.

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Maths M.C.Q

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