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Let the length of the lighthouse = BD m Use this property - When the angles of a triangle are 30 ° ,60 ° , and 90° respectively, the ratio of the opposite sides is 1: √ 3:2. When Triangle BDC – The opposite side of angle 30° = 1 Similarly - angle 60° = √ 3, and angle 90° =2 Triangle ABD -opposite side of angle 30 ° =BD = 1= √ 3……. means √ 3times. so -opposite side of angle60° =AD = √ 3 = √ 3× √ 3 =3 now – AD + DC = AC 4= 230 √ 3 1= (230 √ 3)/4 Now height = BD = √ 3= (230 √ 3/4) × √ 3= (230 ×3)/4 =690/4 =172.5meter
The etiology of FMD in animals is -
Which of the following breed of cow is highest milk yielder ?
Cross of Bikaneri and Merino is?
Grass tetany in cattle and sheep is due to deficiency of
Milk fever is a type of disease-
Which color sticky traps are used for aphids and white fly?
Area designed for the feeding of lamb, calves and piglet in the farm but not used for adults is known as?
The average dry matter requirement of desi cow is ____ during dry period and ____ during lactating period.
Which part of the cattle body contains mammary glands and is an indicator of milk production capacity?
Feeding extra concentrates to pregnant sheeps is known as………………………