Question

lesson Area and perimeter​

Answer 1

Answer:

1. 280cm^2 , 68cm
2. 18cm , 216 cm^2
3. 10 cm , 70 cm

Hope it help

Answer 2

Answer:

1. we know that first figure is of rectangular

area of rectangle =l*b

20*14=290cm square

perimeter =2(l+b)

2(20+14)

=68cm

2. perimeter =2(l+b)

60 =2(l+12)

60=2l+24

2l=36

l=18cm

so area =18*12

area=218cmsquare