Scaling Two Dimensions

What is a scale drawing?

• A two-dimensional representation of an actual object or place.

• This line segment from the center of a circle to a point on the circle.

• When two lines cross, they form two pairs of vertical angles across from one another.

• An image that has been made bigger and all the angles change size.

Tags

CCSS.7.G.A.1

True or False: The scale tells us what some length on the scale drawing represents in actual length

• True

• False

Your scale is 1 inch to 5 miles. If the drawing shows a road that is 2 inches long, how many miles is the actual road?

• 5 miles

• 2.5 miles

• 10 miles

• 7 miles

Tags

CCSS.7.RP.A.2C

Kiera measured a farm and made a scale drawing. In real life, the goat pen is 18 meters long. It is 6 centimeters long in the drawing. What scale did Kiera use for the drawing?

• 1 cm = 6 meters

• 1 m = 18 centimeters

• 18 centimeters = 6 meters

• 1 cm = 3 meters

Tags

CCSS.7.G.A.1

A scale shows 1:50 on a plan. What is the scale factor to find out the 'real' sizes from the plan?

• x 1

• x 50

• ÷ 50

• ÷ 1

Tags

CCSS.7.G.A.1

The scale drawing of a car is 3 cm long.

If the scale is 1 cm:4 ft, what is the actual real length of the car?

• 12 feet

• 16 feet

• 10 feet

• 4 feet

Tags

CCSS.7.G.A.1

The distance from Point A to Point B on a scale drawing is 6 cm.

If the scale is 1cm : 10m. What is the actual distance from A to B?

• 6 m

• 10 m

• 18 m

• 60 m

Tags

CCSS.7.RP.A.2C

A scale states 1m = 10cm. How long would you draw a bath on a plan if the bath was actually 190cm long?

• 1900cm

• 190cm

• 19cm

• 1.9cm

Tags

CCSS.7.G.A.1

Scale is 1cm = 8km. Hatboro and Smithville are 24cm apart on the map, how far apart are they in real life?

• 87 km

• 216 km

• 33 km

• 192 km

On a plan, a garden measures 22cm long.

The scale is 1:50

How long is the 'actual' length of the garden in metres?

• 1100m

• 11m

• 0.44m

• 72m

Tags

CCSS.7.G.A.1