Manash is putting new tile on a kitchen counter. Each sheet of tile will cover 1.5 ft2.How many sheets of the tile will Manesh need to cover the whole counter

12 tiles

Step-by-step explanation:

Find the diagram to the question attached below.

First we need to get the area of the whole counter as shown in the diagram.

Since the shape is made up of two rectangles, we will take the sum of their areas.

Area of a rectangle = Length × Breadth

Area of the counter = (2×4)+(2×5)

Area of the counter = 8+10

Area of the counter = 18ft²

If each sheet of tile will cover 1.5 ft², the amount of tiles needed to cover the whole counter = Area of the counter/Area of each sheet

= 18ft²/1.5ft²

= 12 tiles

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step-by-step explanation:

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

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