Sir/Madam can you please solve question no.10 Sir/Madam can you please solve question no.10 LA = 900. Calculate the area of A ABC. (ICSE) 10. The sides of a triangular field are 320 m, 200 m and 180 m long. Using ruler and compasses 'only, draw the plan of the field using the scale 50 m = I cm. Construct the altitude ofthe triangle on the side representing 320 m. Measure the altitude and use your result to calculate the area 2 of the actual field in m . (ICSE) Share with your friends Share 1 Ashok Kumar Vardhan answered this Dear student, Steps for construction: Given measurements:AB=320 mBC=180 mCA=200mGiven,50 m=1 cm⇒AB=320 m=32050=6.4 cm⇒BC=180 m=18050=3.6 cm⇒CA=200m=20050=4 cmSteps for construction:1.Draw line segment AB =6.4 cm.2.With A as center and 4 cm as radius,draw an arc.3.With C as center and 3.6 cm as radius,draw an arc to cut the previously drawn arc at C.4.Join AC and BC.5.Extend the line segment AB.6.With C as center and any length outside AB,cut AB at F and G.7.With the same length,and F as center,draw an arc below AB8.With the same length,and G as center,cut the previously drawn arc at E.9.Join Ec and let it cut AB at B.CD is the required altitude.On measuring,CD=2 cm=2×50=100 mHence,Area of triangle =12Base×Altitude⇒Area of triangle =12AB×CD⇒Area of triangle =12320×100⇒Area of triangle =320002 m2⇒Area of triangle =16000 m2 Hope this information will clear your doubts about the topic. If you have any more doubts just ask here on the forum and our experts will try to help you out as soon as possible. Regards 2 View Full Answer Bishakha Bhattacharjee answered this Experts please answer it quickly...... 0
