Understanding Areas of Composite Figures

What is the first step in finding the area of a composite figure?

• Calculate the perimeter

• Measure the longest side

• Divide it into simpler known shapes

• Guess the total area

How do you find the area of a triangle?

• Length x Width

• (Base x Height) / 2

• Pi x Radius squared

• Base + Height

What is the area of a semicircle with a diameter of 6 meters?

• 7.07 m²

• 56.52 m²

• 28.26 m²

• 14.13 m²

What is the area of the larger rectangle if its base is 42 and height is 25?

• 625 m²

• 167 m²

• 67 m²

• 1050 m²

How do you calculate the area of a composite figure that includes a rectangle and a smaller rectangle cut out?

• Subtract the smaller rectangle's area from the larger one's

• Add the areas of both rectangles

• Divide the larger rectangle's area by the smaller one's

• Multiply the areas of both rectangles

How do you find the missing base of a triangle if you know the entire length and the lengths of the other two sides?

• Divide the total length by the known lengths

• Multiply the known lengths

• Subtract the known lengths from the total length

• Add the lengths of the other two sides

What is the area of a semicircle with a radius of 3 yards?

• 28.26 yd²

• 18.84 yd²

• 14.13 yd²

• 9.42 yd²

What is the formula to calculate the area of a trapezoid?

• 2 x (Base1 + Base2 + Height)

• Base1 x Base2 x Height

• (Base1 + Base2) x Height / 2

• (Base1 + Base2) x Height

What is the area of the trapezoid if its bases are 10 yards and 6 yards, and its height is 8 yards?

• 64 yd²

• 128 yd²

• 80 yd²

• 48 yd²

If a composite figure is made of a semicircle and a trapezoid, how do you find its total area?

• Multiply the areas of both shapes

• Subtract the area of the semicircle from the trapezoid

• Add the areas of both shapes

• Divide the area of the trapezoid by the semicircle