1 Answer

SnyersK · Answer 1 · 2023-06-07T13:16:10+0000

a Given

Answer

a) Area of door = Area of semi-circle of radius 5 + area of a square of length 10

$\begin{gathered} \pi r+s^2 \\ =(22)/(7)*5+10^2 \\ =115.71 \end{gathered}$

b) Full length of rectangle = 36+20+36+20 = 112

Breadth of rectangle = Radius of Semi circle + Length of square = 5+10 =15

Area of dollhouse = Area of full rectangle + Area of triangle 1 + Area Of triangle 2 - Area of door

Area = lxb + 1/2 b x h +1/2 b x h - 115.71

$\begin{gathered} 112*15+(1)/(2)*25*10+(1)/(2)*20*10-115.71 \\ =1680+125+100-115.71 \\ =1789.29 \end{gathered}$

Please log in or register to add a comment.