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11111nata11111 [884]
3 years ago
5

Prove that opposite sides of a parallelogram are congruent.

Mathematics
1 answer:
ad-work [718]3 years ago
6 0
Side angle side or SAS

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The sum of the measures of angle LMN and angle NMP is 180 degrees
Vaselesa [24]

Answer:

angle LMN is 153 degrees.

Step-by-step explanation:

180 = 15g + 18 +3g; combine like terms

180 = 18g + 18; subtract 18 on both sides

162 = 18g; divide 18 on both sides

g = 9

plug in: 15(9) + 18 = 153

please mark brainliest if I helped you!

6 0
2 years ago
Solve the triangle, AMDM
krok68 [10]

Answer:

B

Step-by-step explanation:

You are given two sides and the included angle, so you need to use the law of cosines.

c² = a² + b² - 2ab cos C

c² = 12² + 13² - 2(12)(13)cos 134°

c² = 313 - 312(-0.6947)

c² = 529.733

c = 23.016

Now use the law of sines.

c/sin C = a/sin A

23.016/sin 134° = 12/sin A

sin A = 12 × sin 134° / 23.016

sin A = 0.37504

A = 22.03°

B = 180° - 134° - 22.03°

B = 23.97°

m<A = 22°; m<B = 24°; c = 23 km

Answer: B

6 0
1 year ago
I need help with this
Pachacha [2.7K]

Answer:8a-28b+15c

Step-by-step explanation:

3 0
2 years ago
In triangle ABC, angle A measures 40º and angle B measures 60º. In triangle PQR, angle P measures 40º and angle Q measures 80º.
Soloha48 [4]

Answer:

Latoya's statement because they are similar not congruent

4 0
2 years ago
If the output number y is -52 (y=5x-2) what is the input number? SHOW WORK
nordsb [41]

Answer:

the input number is -10

Step-by-step explanation:

output is always y

input is always x

so instead of y, put -52

-52=5x-2  add 2 to each side to ger 5x by itself

-50=5x     divide both sides by 5 to get x by itself

-10=x

x is the input so the input is -10

8 0
2 years ago
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