Answer:216 cm
Step-by-step explanation:
Step 1:Find the base and height base:18 cm height:12 cm.
Step 2:Multiply the base and height 18 cm*12 cm=216 cm.
Step 3:Answer 216 cm.
The magnitude of YZ is 8.6
<u>Explanation:</u>
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Y( -4, 12)
Z ( 1, 19)
Magnitude of YZ = ?
We know:

On substituting the value we get:

Thus, the magnitude of YZ is 8.6
The answer is 24
subtract 156 from 180
108-156=24