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What is the measure of DEF

What is the measure of DEF-example-1
User Einn Hann
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2 Answers

1 vote

The total angle of a triangle is 180°. Using this we can find the angle DEF(x).

180=28+47+x

180=75+x

180-75=x

105=x

SO angle DEF=105°

Hope it helps!!

User Carleto
by
4.1k points
4 votes

Answer:

105°

Solution,


let \: < def \: be \: x \\ x + 28 + 47 = 180 \\ or \: x + 75 = 180 \\ or \: x = 180 - 75 \\ x = 105 \\ hope \: it \: helps \\ good \: luck \: on \: your \: assignment

User Sergii Getman
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4.9k points