8th Grade > Mathematics
PRACTICAL GEOMETRY MCQs
:
A
Suppose, we have to draw a quadrilateral. The length of three given sides are 'a' units, 'b' units and 'c' units. The measure of two given angles is α and β.
The first step is to construct a line segment AB = 'a' units. Taking AB as the base, we construct a line making an angle α with the line segment AB. We cut the line by an arc of length 'b' units taking B as center and mark point where arc cuts the line as C.
Taking BC as the base, we construct a line making an angle β with the line segment BC. We cut the line by an arc of length 'c' units taking C as center and mark point where arc cuts the line as D.
The final step is to join A and D to complete the quadrilateral ABCD.
:
A
As all the sides are equal and all the angles measure 90 degrees in a square, the given information is enough to construct a square.
:
A and B
A Kite is a quadrilateral in which both the adjacent sides are equal to each other. Also, one of the opposite angles is equal. Therefore, to construct a Kite, length of two unequal sides must be given. Also, the length of the diagonal or the measure of any one of the angles must be given.
:
B
3 sides and 2 diagonals of a quadrilateral is known. This information is enough to construct a quadrilateral. Thus, a protractor is not necessary for the construction because no angles are measured or drawn during construction.
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B
To construct a quadrilateral, we need to construct two triangles. As, both the diagonals are known, we can construct any of the two triangles first. Thus, there are two ways to start this construction.
:
A
To make the two line segments meet, arcs are drawn and their intersection point is found. A compass is hence used.