Composite Area Problem-Solving

The shape is made using a rectangle and semicircle.

To find the area of the rectangle, you would use:

A= 8 × 4

To find the area of the circle, you would use

A= ( π × ​ (a)   ²) ÷ ​ (b)  

• 4

• 2

• 12

• 8

A composite shape is made from a triangle and rectangle. Addison completes the following computation to solve for area of the composite shape. Which part of her problem solving is incorrect?

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Tags

CCSS.3.MD.C.7D

A composite shape is made from a triangle, rectangle, and semicircle. Kylie completes the following computations to solve for area. Where did Kylie make an error in the computation?

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A composite shape is made from a trapezoid and square. Cristina completes the following computation to solve for area. Specify where Cristina made an error.

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Tags

CCSS.3.MD.C.7D

What is the surface area of this composite figure?

• 785 m^2

• 1,734 m^2

• 1011 m^2

• 505 m^2

What is the surface area of the composite solid?

• 216 m2

• 248 m2

• 256 m2

• 224 m2

Calculate the composite surface area of the figure.

• 80 cm²

• 72 cm²

• 52 cm²

• 42 cm²

Tyrone makes a wooden letter T to hang on his bedroom wall. The T is a right prism. Tyrone plans to cover all the faces except the back with fabric. How many square inches of fabric will he need?

• 104

• 72

• 256

• 176

Tags

CCSS.7.G.B.6

What is the surface area of this figure

• 30.2 yd^2

• 50.2 yd^2

• 47.2 yd^2

• 54.5 yd^2