Area of Shapes and Decompose

Find the surface area of the rectangular prism.

• 94 cm. squared

• 60 cm. squared

• 12 cm. squared

• 19 cm. squared

FInd the Surface area of the shape below?

• 258 m²

• 268 m²

• 248 m²

• 278 m²

Area of triangle?

• 17 units²

• 20 units²

• 10 units²

• 16 units²

Find the area.

• 60 in

• 60 in²

• 50 in

• 50 in² 

What is the area of the composite shape?

• 50cm²

• 25cm²

• 40cm²

• 35cm²

Find the surface area of the triangular prism.

• 228 cm²

• 170 cm²

• 304 cm²

• 328 cm

What is the proper way to get the area of an irregular polygon (also known as a composite figure)?

• Decompose it into known shapes and get the area of each shape. Subtract those areas from each other to get the total area.

• take a guess

• Decompose it into known shapes and get the area of each shape. Add those areas to each other to get the total area.

• Decompose it into known shapes and get the area of each shape. Multiply those areas by each other to get the total area.

Find the AREA of a triangle with a base is 9 ft and the height is 4 ft

• 36ft

• 36ft²

• 18ft

• 18ft²

What is the formula & what is the area? The answer MUST include BOTH!!!

• A = b⋅h

  & 8 in²

• A = (b+b)h

  & 12in²

• A = (b+b)h/2

  & 6in²

• A = d⋅d/2

  6in²

This is the formula to find the area of which shape?

• parallelogram

• triangle

• square

• trapezoid