Answer:



Step-by-step explanation:
Given




Required
Determine the measure of each angle
The angles in a triangle sum up t 180. i.e.

Since
, then 
can then be rewritten as:


Substitute values for B and C

Open Bracket

Collect Like Terms


Divide both sides by 23

To get the measure of each angle, substitute 11 for x in the expressions of B, C and D









x=−2 and y=−4
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Answer:
71
Step-by-step explanation:
Answer:
The options B and D both are whole numbers
explanation:
a number without fractions; and decimals is called a whole number
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