+0

# On a photograph of a triangular piece of land, help

+1
30
1
+350

On a photograph of a triangular piece of land, the lengths of the three sides are 3 cm, 7 cm, and 8 cm, respectively. The shortest side of the actual piece of land is 120m long. Find the lengths of the other two sides.

The length of the longest side of the triangular piece of land is _____▼m.m2. c .cm2. m.

The length of the  middle-sized side of the triangular piece of land is  ____ cm  .cm2. m2 .

@CPhill

#1
+5552
+2

We know that

the shortest side on the photo * the scale factor  =  the shortest side on land

3 * s  =  120

s  =  120/3  =  40

So each side on land is  40  times the corresponding side in the photo.

the longest side  =  40 * 8  =  320  m

the middle side   =  40 * 7  =  280  m

hectictar  Dec 5, 2017
Sort:

#1
+5552
+2

We know that

the shortest side on the photo * the scale factor  =  the shortest side on land

3 * s  =  120

s  =  120/3  =  40

So each side on land is  40  times the corresponding side in the photo.

the longest side  =  40 * 8  =  320  m

the middle side   =  40 * 7  =  280  m

hectictar  Dec 5, 2017

### 13 Online Users

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details