Algebra Homework Help : Formulae & Algebraic Relations

Express each of the following statements as a formula.
Type the formula in the input box. Leave no spaces when typing the answer.
Since there are multiple ways of writing an answer, it is possible the computer may mark a correct answer wrong.
So, please always check the answer and explanation.
SEVERAL OF THE FORMULAE BELOW ARE WELL-KNOWN AND WORTH REMEMBERING.

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1.
Area (A) of a rectangle is the product of its length (L) and breadth (B).

Hint

Hint

2.
Perimeter (P) of an equilateral triangle is thrice the length of a side (a) of the triangle.

Hint

3.
Curved Surface area (S) of a right cone is (22/7) times the product of the radius (r) and the slant height (L).

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4.
Profit (P) is the difference between selling price (S) and cost price (C).

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5.
Area (A) of a square equals the square of the length of a side (a).

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6.
Area (A) of a rhombus is the product of the diagonals (a and b) divided by 2.

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7.
Perimeter (P) of an isosceles triangle equals the length of the base (b) plus twice the length of one of the equal sides (a).

Hint

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