Question

In a school, the students thought of planting trees in a trapezium shaped field which has a perimeter of 52m and its each non parallel sides equal to 10m with its height as 8m, to reduce air pollution what is the area of the trapezium

Answer 1

Answer:

sorry I didn't the answer of these question ⁉️

Answer 2

Answer:

here your answer

Step-by-step explanation:

step by step

hence the sires is

3,6,9

since difference is same ,it is and AP

with common difference =d=6−3=3

also

since there are 12 rows

n=12

we need to find total number of tree planted

i.e. we need to find 5

we use formula

Sn ={n}{2} (a +l)

putting n =12,a=3 ,l =36

12

2

3+36

=6×39

=234

hence total number of tree planted by school234