CBSE Class 9 Mathematics Construction VBQs

CONSTRUCTION

Question. Delhi traffic police wants to make a traffic signal board of the shape of an equilateral triangle of side 5 m to make the people aware of the traffic rules. Construct the above traffic signal board by taking each side as 5 cm (instead of m). What value is depicted here ?
Answer: 
(a) Do correct construction 
(b) To make the people aware of traffic rules for safety measures.

Question. Ram Lal has a triangular piece of land ABC in which ÐB = 30°, ÐC = 90°, AB+BC+CA = 11 m. He donated this to a vridhashram. Construct a triangle using above dimensions (use cm in place of m). What value represents here ?
Answer:
(a) Do correct construction
(b) Habit of donation

Question. Students of a school staged a rally for cleanliness campaign. They walked through the lanes AB, BC and CA which form a triangle. Construct the DABC in which BC = 8m, ÐB = 45° AB–AC = 3.5m. What value represents here ? (Construct the triangle using cm in place of m)
Answer:
(a) Do correct construction
(b) To make the environment clean.

Question. A co-operative house adopted a triangular park DPQR to maintain its greenary of dimensions QR = 7m, ÐQ = 75° and PQ + PR = 13m, Make a D PQR using cm instead of m. What value represents here ?
Answer: 
(a) Do correct construction
(b) (i) To make the environment clean.          (ii) Community services

Question. The villagers of a village wish to make a pool to drink water for animals. They constructed it in the shape of a triangle. The dimensions of the pool are 5m and 12m and the angle between them is 90°. Construct it by taking as cm instead of m. What value represents here?
Answer:
(a) Do correct construction
(b) Social wo

                                                      

(a) Mohan is correct                                   (b) Sohan is correct

 

(c) Both are correct                                    (d) Both are wrong

 

Answer: 
(a) Mohan is correc

(b) Truth value

 

Question. Kavita makes a triangular shaped carpet of dimensions 5m, 5m and 6m and donates it to a blind school. Construct a triangle using the above dimensions in cm. What value represents here ?
Answer:

(a) Do correct construction
(b) Habit of donation, social work

 

Question. Choose the correct option for ÐA—

                                                                                    

(a) 60+1/2 * 60             (b) 60+1/4 * 60

 

(c) 60+ 1/3 * 60           (d) 60+ 1/5 * 60

 

What value is depicted here ?

Answer:
(a) 60+1/4 * 60

(b) Truth value

 

Question. Panther club made a tent to save poor people during winter season.They made its door triangular shape of sides 3m, 4m, 5m. Construct the door taking measurements of sides in proportion. What ideas are being promoted by the club ?

Answer: 
(a) Do correct construction
(b) Community services, Social services

 

Question. Aretired army officer wish to make an orphan house of right triangular shape in which one side is 13.5mand sumof other side and hypotenuse is 15.5 m. Construct the triangle taking measurements in cms. What ideas promote here ?