Question

someone plz do it cause i need it clearly so i learn

Answer 1

Step-by-step explanation:

area of doll house = ar. of triangle + ar. of rectangle

=1/2 base× height + l×b

=1/2 (2×1.5) + 2× 3

= 1.5+6

=7.5 m sq.

perimeter of doll house=2m+2m+3m+2m+3m

=12 m

Answer 2

As shown in the given figure, there are two figure 1) triangle and 2) rectangle

First we find the area of triangle :-

we know,

area of triangle = 1/2×base×height

= 1/2×2m×1.5m

1.5m²

Now we find the area of rectangle :-

we know,

area of rectangle = length × breadth

= 3m×2m

=6m²

Now, perimeter of given figure = sum of all the sides

=2m+2m+3m+3m+2m

= 12m

and area of figure = area of triangle + area of rectangle

= 1.5m²+6m²

= 7.5m²