Page 162 - Maths Skills - 7

160 Maths

Answer the following questions on the basis of (a) Both A and R are true and R is the correct
the above data. explanation of A.
1. Which of the angle is vertically opposite to ∠3? (b) Both A and R are true but R is not the correct
(i) ∠2 (ii) ∠4 explanation of A.
(iii) ∠1 (iv) ∠6 (c) A is true but R is false.

2. If ∠5 = 80° then the value of ∠6? (d) A is false but R is true.
(i) 80° (ii) 100° Q. 1. Assertion (A): 155° is the supplement of 25°.

(iii) 90° (iv) 50° Reason (R): The difference of 155° and 25°
3. What is the corresponding angle of ∠2? is 130°.
(i) ∠5 (ii) ∠6 Q. 2. Assertion (A): The measure of the complement

of angle of measure 75° is 15°.
(iii) ∠7 (iv) ∠8 Reason (R): The sum of 75° and 15° is a right
4. What is the sum of ∠7 and ∠8? angle.
(i) 0° (ii) 90° Q. 3. Assertion (A): If two lines are intersected by a

(iii) 180° (iv) 120° transversal, then a pair of
alternate angles are equal.
5. Which are the adjacent angles of ∠1? Reason (R): Parallel lines are always equidistant.
(i) ∠4 and ∠3 (ii) ∠2 and ∠4

(iii) ∠2 and ∠3 (iv) ∠5 and ∠4 SUBJECTIVE TYPE QUESTIONS
F. Solve the following word problems
E. Assertion-Reason Based Questions
Directions for Questions 1 to 3: In each of the 1. Show that when two lines intersect, the vertically
opposite angle so formed are equal.
questions given below, there are two statements 1
marked as Assertion (A) and Reason (R). Mark your 2. An angle is of its supplement. What is the
4
answer as per the codes provided below: degree measure of the angle?

INTEGRATED QUESTION

G. Social Science vs Maths
The map shows the area and roads around a school.

Use this map to answer the following questions:
(i) Colour all roads that are parallel to Abu lane with
black colour. Road-1

(ii) Colour all the transversal roads with red colour. Road- 4

(iii) Mark 3-obtuse angles with level O , O , O . Road-5 Road-3
1 2 3 School
(iv) Find the name of that road which is perpendicular Road-2
to road-2.

(v) How many right angles are in this map. Abu Lane

(vi) Mark 6-acute angles with level a, b, c, d, e, f.