25 is equal to 20% of 125 As the increase is 75 (200-125), you've then got to divide the increase by each part to find out how many times it increases. 75/25= 3 20*3= 60 Therefore, there is an increase of 60% Hope this helps :)
The angle of elevation of shadow from building is 50 degrees tan 50=height of building/length of shadow=h/75 h=75tan50=75(1.192)=89.38 feet the height of the building is 89.38 feet
