8. Five marks exercise problems - III

1. In the given figure, the quadrilateral swimming pool shown is surrounded by concrete patio. Find the area of the patio.

 

 

Answer:

 

The area of the patio \(=\)  \(sq. \ units\).

 

2. A trianglular shaped glass with vertices at \(A(-5, -4)\), \((B(1,6)\) and \(C(7,-4)\) has to be painted. If one can of paint covers \(6 \ square \ feet\), how many cans of paint will be required to paint the whole glass, if only one coat of paint is applied?

 

Answer:

 

The cans required to paint the whole glass \(=\) .

 

3. In the figure, find the area of (i) triangle \(AGF\) (ii) triangle \(FED\) (iii) quadrilateral \(BCEG\).

 

 

Answer:

 

(i) Area of \(\triangle AGF =\)  \(sq. \ units\).

 

(ii) Area of \(\triangle FED =\)  \(sq. \ units\).

 

(iii) Area of \(\triangle BCEG =\)  \(sq. \ units\).