1st problem:
A = 630 cm
2nd problem:
A = 104 cm
All I can see on the picture you provided.
area=legnth times width
we notice this is a special case
(a+b)(a-b)=a^2-b^2
area=(a+3b)(a-3b)=a^2-9b^2
area=a^2-9b^2
Answer:
18÷2 × 3 / 5-2
9 ×3 / 3
27/3
9
tyvm this was my 100th answer :)
What? This isn’t really a question!
The Great War (WW1) killed many empires who had been around for hundreds of years. It introduced some very inhumane weapons such as gas, and was the 1st war when old tactics met new ones. Back then, a war on this scale has never been seen.
It also gave birth to many new nations
