Area of Composite Figures

Which of the following formulae is CORRECT?

• Area of a triangle = 1/2 (b × h)

• Area of a rectangle  = b × w

• Area of a circle  = r × r

• Area of a square   = r × s

It is formed by two or more basic geometric figures.

• Area

• Plane Figures

• Solid Figures

• Composite Figures

What is the measure of the side of the square if its area is 121 square meters?

• 10

• 11

• 12

• 13

What is the area of a rectangle with dimensions 12 meters long and 5 meters wide?

• 45 sq.m

• 48 sq.m

• 36 sq.m

• 60 sq.m

What is the area of a triangle whose base is 5 inches and has a height of 4 inches?

• 20 sq.inch

• 10 sq.inch

• 24 sq.inch

• 15 sq.inch

If the diameter of a given circle is 32 centimeters, what is its radius?

• 32 cm

• 30 cm

• 16 cm

• 20 cm

What is the area of the square?

(no need to label your answer)

Given r = 7 cm , what is the area of the circle?

(no need to label your answer)

What is the area of the white region of the composite figure?

(no need to label your answer)

Anne started sewing a geometry dash rug that measures 8 meters long and 6 meters wide . The blue cloth  is 3 meters long and 2 meters wide. Answer the questions below using the figure below.

What is the area of the rug?