Help with all of these please explain if u can !

Area of Q4 is 78 sq cm

Area of Q5 is 200 sq ft.

Step-by-step explanation:

SOLUTION OF 4

The given figure is a trapezium.

Here, and   are the two parallel sides.

=  8 cm

= 8+10 = 18 cm

h is the height.

h = 6 cm

Area of the fig = h( + )

So,

Area = ×6×(18+8) sq cm

= 78 sq cm

SOLUTION OF 5

For garage,

Length (l) = 6 ft

Width (w) = 4 ft

For bedroom,

Length (l) = 8 ft

Width (w) = 4 ft

For dining space,

Length (l) = 10 ft

Width (w) = 10 ft

For washroom,

Length (l) = 2 ft

Width (w) = 4 ft

For drawing room,

Length (l) = 6 ft

Width (w) = 6 ft

Formula

The area of the rectangle = l×w

Now,

Area of the garage = 24 sq ft

Area of the bedroom = 32 sq ft

Area of the dining space = 100 sq ft

Area of the washroom = 8 sq ft

Area of the drawing room = 36 sq ft

Hence, area of the house = 24+32+100+8+36 sq ft = 200 sq ft.