Hello there.
<span>What is the measure of ∠GEH?
Answer: </span><span>141°</span>
Step-by-step explanation:
3(7 + x) = 3×7 + 3x = 21 + 3x
remember, when you multiply two expressions, you need to multiply every term of the first expression with every term of the second expression, and then add all partial results (by considering the individual signs, of course).
The perimeter of a triangle is the sum of the lengths of all sides.
Using the distance formula
calculate the lengths of the sides and then add them up.
The answer is A.
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