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RSB [31]
3 years ago
13

What is the measure of DEF

Mathematics
2 answers:
Daniel [21]3 years ago
8 0

<em>Answer:</em>

<em>1</em><em>0</em><em>5</em><em>°</em>

<em>Solution</em><em>,</em>

<em>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</em>

den301095 [7]3 years ago
4 0

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!!

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