Lesson 03: Reasoning to Find Area | Unit 1: Area and Surface Area

Open Ended

Find the area of the shaded region in image A. Show your reasoning.

Open Ended

Find the area of the shaded region in image B. Show your reasoning.

Open Ended

Find the area of the shaded region in image C. Show your reasoning.

Draw

Find the area of the shaded region in figure A. Show or demonstrate your reasoning on the image.

Draw

Find the area of the shaded region in figure B. Show or demonstrate your reasoning on the image.

Draw

Find the area of the shaded region in figure C. Show or demonstrate your reasoning on the image.

Draw

Find the area of the shaded region in figure D. Show or demonstrate your reasoning on the image.

Open Ended

Two plots of land have very different shapes. Noah said that both plots of land have the same area. Do you agree with Noah? Explain your reasoning.

Multiple Choice

Find the area of the rectangle with side lengths 5 in and $$\frac13$$ in.

• 2 in²
• 15 in²
• 1 in²
• 5/3 in²

Multiple Choice

Find the area of the rectangle with side lengths 5 in and $$\frac 43$$ in.

• 5 in²
• 15 in²
• 20/3 in²
• 10 in²