construction 13

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..

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 DCB, respectively, each being e..

To bisect an angle , we are required to bisect (i) With B as centre and any suitable radius draw an arc to cut AB at D and BC at E respectively. (ii) Take any radius greater than of ED, not necessarily the previous radius. (iii) With this radius, taking points D and E as centres, draw two arcs whic..

The students of Environmental studies collected the data of the life span of Zebras from the zoological authorities which are as follows. 20, 12, 19, 22, 28, 30, 17, 25, 10, 23, 16, 18, 21, 32, 15, 14, 8, 22, 11, 13, 18, 20, 21, 19, 19 Find the average life span of a Zebra by constru..

A box contains four types of pens: Type 1, Type 2, Type 3 and Type 4. Construct a bar graph to represent the number of pens in each type. What percent of the total number of pens belong to Type 2? Type 1 2 3 4 Number of pens 13 8 9 10 => Graph 4; 20% or Graph 2; 25% or Graph 1; ..

The frequency distribution of the highest temperatures (in °F) in 50 states during a season is shown. Find the percentile rank for a temperature of 117.5°F by constructing a percentile graph. Temperatures Number of states 99.5 - 104.5 2 104.5 - 109.5 8 109.5 - 114.5 18 114.5 - 119..

It is a white powder. When mixed with water (1/3 of its mass), it evolves heat and quickly sets to a hard porous mass within 5 to 15 minutes. During setting, a slight expansion (about 1%) in volume occurs so that it fills the mould completely and takes a sharp impression. The process of ..

The transmission lines used in telephony are of two kinds: open- wire and cable. The open-wire lines are gradually being superseded by cable construction, either overhead or underground, for two principal reasons. In the first place, many more circuits can be accommodated-there is a stand..

) The lasers are used for drilling tiny holes in diamonds for drawing fine wires. (iv) They are used in precision surveying. Because of its high intensity and exceptional directionality, the laser is an excellent tool for surveying. In order to be certain that a bridge or tunnel is being const..

. Such series demonstrate as to how various forms of life have changed gradually over a period of millions of years. As a result, the evolution of a number of animals such as horse, camel and elephant, has been clearly understood. Plenty of fossil evidence is now available so as to establish human ..