Answer:
Area = 840 mm²
Step-by-step explanation:
A
=
b
h
=
42
·
20
=
840
There are 10 sides becuase the equation set up is and equal it to 144.
Solve for n and get 10
:)
the annual dividend is
220×0.0625=13.75
Hope it helps
12 ft * 10 ft = 120 sq ft
½ * 6 ft * 7 ft = 21 sq ft
120 sq ft - 21 sq ft = 99 sq ft (it is area of the composite shape)