Answer:
3.4 × 10^25
Step-by-step explanation:
First number has to be less than 10 so 3.4.
Count how many decimal places the decimal needs to move.
16(2+5) since when you use distributive property, 16*2= 32 and 16*5= 80
Answer:
77.25 cm^2
Step-by-step explanation:
Area of a regular octagon :
2a^2(1 + (sqrt2))
where a is the side
substitute 4 in for 'a'
