Answer:
Explanation:
The diagonal of a square is x units.
Let the side of a square is s.
Using pythagoras,
The area of the square is,
A = s²
So,
So, the area of a square is 
sq units.
A hopes this helps good luck
Answer:
The hydrogen gas is prepared in the laboratory required zink granules, dilute sulphuric acid or dilute hydrogen chloride, flask or woulfe’s bottle, and thistle funnel. by the downward displacement of water because it is a gas lighter than water
Reaction:
Zn (s)+2HCl (aq) →ZnCl2(aq)+H2(g)
Zn (s)+H2SO4(aq)→ZnSO4(aq)+H2(g)
The zinc granules are taken in a flask or Woulfe’s bottle and It is connected with the delivery tube to a water trough containing water. Dilute sulphuric acid is poured slowly from the thistle funnel. The hydrogen gas is released and collected in a gas jar by by the downward displacement of water as H2 gas lighter than water
Answer:
India is around 3,287,263 sq km, while Singapore is roughly 719 sq km, making Singapore 0.02% the size of India. In the interim, the number of inhabitants in India is ~1.3 billion individuals (1.3 billion less individuals live in Singapore).
Explanation:
hope this helps !!
