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Math Problems: Geometry and Equations

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Questions and Answers

What is the formula to find the perimeter of a square?

P = 4s, where s is the side length

What is the formula to find the area of a triangle?

A = (b × h) / 2, where b is the base and h is the height

If a triangle has a base of 5 cm and a height of 6 cm, what is its area?

A = (5 × 6) / 2 = 15 cm^2

A rectangle has a length of 8 cm and a width of 5 cm. Find its perimeter.

<p>P = 2(l + w) = 2(8 + 5) = 26 cm</p> Signup and view all the answers

Solve the equation 2x + 5 = 11. What is the value of x?

<p>2x + 5 = 11 --> 2x = 11 - 5 --> 2x = 6 --> x = 6 / 2 --> x = 3</p> Signup and view all the answers

Flashcards

Perimeter of a square

The perimeter of a square is calculated with P = 4s, where s is the side length.

Area of a triangle

The area of a triangle is given by A = (b × h) / 2, where b is the base and h is the height.

Area of a triangle example

For a triangle with a base of 5 cm and a height of 6 cm, the area is A = (5 × 6) / 2 = 15 cm².

Perimeter of a rectangle

The perimeter of a rectangle is calculated with P = 2(l + w), where l is length and w is width.

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Solving linear equations

To solve 2x + 5 = 11, subtract 5 from both sides and divide by 2 to find x = 3.