Question

bluebonnet learning k-5 math
lesson 5 h

1. the width of your pinky finger is about 1 cm.

measure the length of the line segments using your pinky finger.
write your estimate.

a. line segment a _______________
line segment a is about ________ cm long.

b. line segment b ____
line segment b is about ________ cm long.

c. line segment c
_____________________________
line segment c is about ________ cm long.

line segment d _______________
line segment d is about ________ cm long.

Explanation:

To solve this, we estimate the length of each line segment by comparing it to the width of a pinky finger (about 1 cm). We visually check how many times the pinky width fits along each segment.

Part a: Line Segment A

Step 1: Observe the segment

Visually compare Line Segment A to the pinky width (1 cm). Let's say it appears to be about 5 times the pinky width.

Step 2: Calculate the length

Since each "pinky width" is 1 cm, length = number of pinky widths × 1 cm. If it's 5, then \( 5\times1 = 5 \) cm. (Note: Actual estimate may vary based on visual, but this is a sample.)
Line Segment A is about \(\boldsymbol{5}\) cm long (example, adjust based on real visual).

Part b: Line Segment B

Step 1: Observe the segment

Line Segment B looks shorter. Let's say it's about 1 pinky width.

Step 2: Calculate the length

\( 1\times1 = 1 \) cm.
Line Segment B is about \(\boldsymbol{1}\) cm long (example).

Part c: Line Segment C

Step 1: Observe the segment

Suppose it's about 8 times the pinky width.

Step 2: Calculate the length

\( 8\times1 = 8 \) cm.
Line Segment C is about \(\boldsymbol{8}\) cm long (example).

Part d: Line Segment D

Step 1: Observe the segment

Let's say it's about 7 times the pinky width.

Step 2: Calculate the length

\( 7\times1 = 7 \) cm.
Line Segment D is about \(\boldsymbol{7}\) cm long (example).

(Remember: These are sample estimates. The actual length depends on the visual comparison with the pinky finger width.)

Answer:

To solve this, we estimate the length of each line segment by comparing it to the width of a pinky finger (about 1 cm). We visually check how many times the pinky width fits along each segment.

Part a: Line Segment A

Step 1: Observe the segment

Visually compare Line Segment A to the pinky width (1 cm). Let's say it appears to be about 5 times the pinky width.

Step 2: Calculate the length

Since each "pinky width" is 1 cm, length = number of pinky widths × 1 cm. If it's 5, then \( 5\times1 = 5 \) cm. (Note: Actual estimate may vary based on visual, but this is a sample.)
Line Segment A is about \(\boldsymbol{5}\) cm long (example, adjust based on real visual).

Part b: Line Segment B

Step 1: Observe the segment

Line Segment B looks shorter. Let's say it's about 1 pinky width.

Step 2: Calculate the length

\( 1\times1 = 1 \) cm.
Line Segment B is about \(\boldsymbol{1}\) cm long (example).

Part c: Line Segment C

Step 1: Observe the segment

Suppose it's about 8 times the pinky width.

Step 2: Calculate the length

\( 8\times1 = 8 \) cm.
Line Segment C is about \(\boldsymbol{8}\) cm long (example).

Part d: Line Segment D

Step 1: Observe the segment

Let's say it's about 7 times the pinky width.

Step 2: Calculate the length

\( 7\times1 = 7 \) cm.
Line Segment D is about \(\boldsymbol{7}\) cm long (example).

(Remember: These are sample estimates. The actual length depends on the visual comparison with the pinky finger width.)