- Use the Law of SInes to find the measure of angle C:
(sinC)/c = (sinA)/a
sincC = c(sinA<span>)/a
C = sin</span>⁻¹(c·sinA / a)
Plugging in numbers:
C = sin⁻¹(83·sin(31) / 44<span>)
= </span>sin⁻<span>¹(0.97155)
= 76.3°
- We know that the sum of the internal angles of a triangle is 180°, therefore:
B = 180 - (A + C)
= 180 - (31 + 76.3)
= 180 - 107.3
= 72.7°
- Therefore the corret answer is C: angle B is 72.7°</span>
Answer:
x=6
Step-by-step explanation:
-5(x - 2) = -20
first multiple 5 by x and -2
-5x 10 = -20
subtract 10 from 10 and -20
-5x=-30
then divide 5
x=6
Answer: I think the answer is B. 3.
Step-by-step explanation:
Answer:
$24.90
Step-by-step explanation:
2.49 * 10
Answer:
The answer to your question is ∠B = 47, ∠F = 69, ∠H = 62, ∠K = 51
Step-by-step explanation:
To find the values of the angles, use the theorem that states that the sum of the internal angles in a triangle equals 180°.
-Find A
∠A + ∠B + ∠C = 180°
82 + ∠B + 51 = 180°
∠B = 180 - 82 - 51
∠B = 47°
-Find F
∠E + ∠F + ∠D = 180
49 + ∠F + 62 = 180
∠F = 180 - 49 - 62
∠F = 69°
-Find H
∠G + ∠H + ∠I = 180
∠H = 180 - 49 - 69
∠H = 62°
-Find K
∠J + ∠K + ∠L = 180°
82 + ∠K + 47 = 180°
∠K = 180 -82 - 47
∠K = 51°