A square has an area of 90cm^2 work out the length of one side of the square
Give your answer to 1 decimal space

Can someone check my answer? you : )

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a diamond or heart. (type an integer or a decimal rounded to three decimal places as needed.) (b) compute the probability of randomly selecting a diamond or heart or club. (type an integer or a decimal rounded to three decimal places as needed.) (c) compute the probability of randomly selecting queen or club. (type an integer or a decimal rounded to three decimal places as needed.)

Ratio of circumference to diameter example plz i need to now what it looks like.