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Andrew [12]
3 years ago
9

Help please!!!!!!!!!!

Mathematics
1 answer:
Anon25 [30]3 years ago
8 0

Answer:

x = 50.53 degrees

Step-by-step explanation:

Q 1

Find length of BD using the sine Rule:-

5.6 / sin 78 = BD / sin 50

BD =  5.6 * sin 50 / sin 78

BD = 4.386 cm

Now consider triangle BDC

m <  BDC = 180 - 78 = 102 degrees

Applying the sine Rule:-

9.3 / sin 102 =  4.386 / sin < BCD

sin BCD =  sin 102 * 4.386 / 9.3

sin < BCD = 0.4613

m < BCD = 27.47 degrees

So m < x =  180 - 102 - 27.47 degrres

=  50.53 degrees






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