exam Maths Puzzle Numerical Ability

Find the surface area of a prism with height of 4 m when its base is an equilateral triangle with sides of 6 m.

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exam Other Question

Solve:
5(x-2)^2 = 3

Thank you for helping me!!! A theater has 30 rows of seat, the first row has 10 seats and each row thereafter has 1 more seat than the previous row. How many seat are in the theater and what is the equation?