Area of Circles, Parallelograms, Triangles & Circumference

How do you find the AREA of a TRIANGLE?

• Length x Width
• Base x Height divided by 2
• 1/3 (Length x width)
• Base x Height

Area of triangle?

• 17 units²
• 20 units²
• 10 units²
• 16 units²

Find the area:

• 40 yd
• 40 yd²
• 80 yd²
• 18 yd²

What is the area of the parallelogram above?

• 13 cm²

• 28.5 cm²

• 45.6 cm²

• 40 cm²

What is the area?

• 28 square units

• 35 square units

• 14 square units

• 35 square units

Which of these numbers is the height?

• 10

• 5

• 4

What is/are the formula(s) to find the area of a circle?

• πr²
• 2πr
• √π

What is the area of this circle?

• 62.59 cm²
• 113.1 cm²
• 19.81 cm²
• 28.26 cm²

Find the area of the circle, round to nearest tenth:
d = 12 ft

• 11.3 ft²
• 452.2 ft²
• 113.04 ft²

• 115 ft²

What two formulas can you use to find the circumference?

• C = π·d

• C = π·r²

• C = 2·π·r

• C = d²