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Tpy6a [65]
3 years ago
13

DFG and JKL are complementary angles. M DFG = x+5 and m JKL=x-9. The measure of DFG is ___, and the measure of JKL is ___.

Mathematics
2 answers:
Tom [10]3 years ago
7 0

Answer:

<h2>52° and 38°</h2>

Step-by-step explanation:

Givens

  • Angles DFG and JKL are complementary.
  • m \angle DFG=x+5 and m \angle JKL =x-9.

We know that

\angle DFG + \angle JKL = 90\°, by definition of complementary angles.

But, m \angle DFG=x+5 and m \angle JKL =x-9, by given.

Then, we replace

\angle DFG + \angle JKL = 90\°\\x+5+x-9=90\\2x=90+9-5\\x=\frac{94}{2}\\ x=47\°

Then, we replace this value to find each angle.

m \angle DFG=x+5=47+5=52\°\\m \angle JKL =x-9=47-9=38\°

And, 52+38=90, which proves their complementary relation.

Therefore, the angles are 52° and 38°

jeyben [28]3 years ago
6 0

Answer:

C

Step-by-step explanation:

the sum of complementary angles = 90°, hence

x + 5 + x - 9 = 90

2x - 4 = 90 ( add 4 to both sides )

2x = 94 ( divide both sides by 2 )

x = 47

Thus ∠DFG = 47 + 5 = 52° and ∠JKL = 47 - 9 = 38°


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