construction 4

Construction - 4 - To construct angles of 90 o , 45 o and 135 o (i) Draw a line AB and mark any point O on it. (ii) With O as centre, draw an arc of any suitable radius which cuts AB at P. (iii) With P as centre and the same radius, cut this arc at Q. (iv) From Q, with..

To construct angles of 90 o , 45 o and 135 o..

Construction - 14 - To construct a right angled D ABC when hypotenuse AC = 4 cm and hypotenuse and one acute angle are given (1) Draw a straight line AC = 4cm. (2) Taking OC as diameter, draw a semi circle on AC. (3) At A, construct meeting the semi..

Construction - 12 - To construct when , AC = 4 cm, BC = 4.8 cm, two sides and the angle opposite to one of them are given. (1) Draw a straight line AX (2) At A, Construct (3) From A, cut off AC = 4 cm. (4) From C, cut off CB = ..

( ). At Y, make an angle of 30 o ( ). Produce their arms to meet at A. (3) Draw perpendicular bisectors of AX and AY to meet XY at B and C. (4) Join AB and AC. Then is the required triangl..

Construction - 13 - To construct an isosceles when altitude CD to the base AB is 2 cm and the vertical angle C = 90 o (1) Take any straight line XY and at any point D on it, draw cutting off DC = 2 cm. Join DC. (2) At C, on either side of DC, construct angles DCA and D..

Water flowing in high altitude rivers is stored in a man-made reservoir as shown in the figure. The kinetic energy of the flowing water is transformed into potential energy as the water level rises. This water is carried through pipes to the turbine situated at the bottom of the dam. The water ..

Joe wants to construct a house in the area of 4,500 square feet. Find the area in square yards. => 450 square yards or 500 square yards or 600 square yards or 350 square yards..

Question 1 - Question: Answer: Steps of Construction: Step 1: Draw a rough sketch as shown in figure and mark the given measurements. Step 2: Draw a line XY and on it cut off BC = 3.5cm. Step 3: Step 4: Cut off a length BD=5.5cm on BY. Step 5: Join CD. Step 6: Draw the perpendic..

Solar cell is a very thin sandwich of n-type and p-type wafer thin semiconductors of silicon. A U-shaped metal grid is embedded into the thin semiconductor chip as shown in the fig. The lower end of the sandwich is fixed to a metal base which has a metal lead. The grid has a lead contact on the t..