Question

2. The blackboard in your classroom is 70 cm by 40 cm in dimension. Find how
much of chart paper is needed to cover it completely. Also, calculate the
total length of the frame needed around
18 m
it.
0​

Answer 1

Step-by-step explanation:

to find the frame for blackboard we need to know the perimeter of the black board

perimeter =(40×2)+(70×2)

=80+140

=220

so the length of frame is 220cm