Answer:
2,400 cm²
Step-by-step explanation:
You can solve for x because you know that 40cm=x²+4cm:
36 cm = x²
x = 6cm.
Therefore the width is 2(6)²-12, which is 60cm.
So the area is 40 cm x 60 cm, which is 2,400 cm².
Answer:
the awnser is 3
Step-by-step explanation:
Answer:
77
Step-by-step explanation:
sum of all number/total numbers
80+90+10+75+98+95+99/7
77