Ncert solutions mathematics class 7 Solutions for Chapter 10 practical geometry

Exercises in Chapter 10 practical geometry Grade 7

Exercise 10.1

Exercise 10.2

Exercise 10.4

Exercise 10.5

Questions in Exercise 10.1

Draw a line, say AB, take a point C outside it. Through C, draw a line parallel to AB using ruler and compasses only.

Draw a line L. Draw a perpendicular to L at any point on L. On this perpendicular choose a point X, 4 cm away from l. Through X, draw a line m parallel to L.

Let L be a line and P be a point not on L. Through P, draw a line m parallel to L. Now join P to any point Q on L. Choose any other point R on m. Through R, draw a line parallel to PQ. Let this meet L at S. What shape do the two sets of parallel lines enclose?

Questions in Exercise 10.2

Construct an equilateral triangle of side 5.5 cm.

Questions in Exercise 10.4

Construct ΔABC, given m ∠A =60° , m ∠B = 30° and AB = 5.8 cm.

Examine whether you can construct ΔDEF such that EF = 7.2 cm, m∠E = 110° and m∠F = 80°. Justify your answer.

Questions in Exercise 10.5

Construct an isosceles right-angled triangle ABC, where m∠ACB = 90° and AC = 6 cm.