Assignment 4-2: Area (Shorter)

Front

What is the formula for calculating the area of a rectangle?

Back

Area = length × width.

Front

How do you find the area of a triangle?

Back

Area = 1/2 × base × height.

Front

What is the area of a circle?

Back

Area = π × radius².

Front

What units are used to measure area?

Back

Square units (e.g., square meters, square feet).

Front

If a rectangle has a length of 10 units and a width of 5 units, what is its area?

Back

Area = 10 × 5 = 50 square units.

Front

What is the area of a triangle with a base of 8 units and a height of 5 units?

Back

Area = 1/2 × 8 × 5 = 20 square units.

Front

How do you round a number to two decimal places?

Back

Look at the third decimal place; if it's 5 or more, round up the second decimal place.

Front

What is the area of a circle with a radius of 3 units?

Back

Area = π × 3² ≈ 28.27 square units.

Front

If the area of a rectangle is 30 square units and the width is 5 units, what is the length?

Back

Length = Area ÷ Width = 30 ÷ 5 = 6 units.

Front

What is the area of a figure with a length of 12 units and a width of 8 units?

Back

Area = 12 × 8 = 96 square units.