Class 9 FRANK Solutions Maths Chapter 20: Constructions of Quadrilaterals
Revise some geometry Frank Solutions for ICSE Class 9 Mathematics Chapter 20 Constructions of Quadrilaterals. Be it a trapezium or a parallelogram, go through the step-wise instructions to construct a quadrilateral. Our chapter-wise textbook solutions include model answers by experts that build your skills for doing well in your Maths exam.
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Constructions of Quadrilaterals Exercise Ex. 20.1
Solution 1
Solution 2
Solution 3
Solution 4
Solution 5
Solution 6
Solution 7
Solution 8
Solution 9
Solution 10
Solution 11
Solution 12
Solution 13
Solution 14(a)
Steps of construction:
- Draw AD = 3.2 cm
- Draw ∠XAD = 90°.
- With D as centre and radius BD = 5.5 cm, draw an arc to cut AX at point B.
- Join BD.
- With B as centre and radius 3.2 cm draw an arc and with D as centre and radius = AB, draw another arc to cut the previous arc at C.
- Join BC and CD.
Thus, ABCD is the required rectangle.
CD = 4.5 cm
Solution 14(b)
Steps of construction:
- Draw BC = 6.2 cm
- Through B, draw BP such that ∠B = 90°
- From BP, cut BA = 5 cm
- With A and C as centres and radii 6.2 cm and 5 cm respectively, draw arcs cutting each other at D.
- Join AD and CD.
Thus, ABCD is the required triangle.
Solution 15
Solution 16
Solution 17
Solution 18(a)
Since area of rectangle = 21 cm2
And, length = 4.2 cm
Breadth = Area ÷ Length = 21 ÷ 4.2 = 5 cm
Steps of construction:
- Draw BC = 5 cm
- Through B, draw BP such that ∠B = 90°
- From BP, cut BA = 4.2 cm
- With A and C as centres and radii 5 cm and 4.2 cm respectively, draw arcs cutting each other at D.
- Join AD and CD.
Thus, ABCD is the required triangle.
Solution 18(b)
Since area of rectangle = 33.8 cm2
And, breadth = 6.5 cm
Length = Area ÷ Breadth = 33.8 ÷ 6.5 = 5.2 cm
Steps of construction:
- Draw BC = 6.5 cm
- Through B, draw BP such that ∠B = 90°
- From BP, cut BA = 5.2 cm
- With A and C as centres and radii 6.5 cm and 5.2 cm respectively, draw arcs cutting each other at D.
- Join AD and CD.
Thus, ABCD is the required triangle.
Solution 19
Solution 20
