Answer:
Denote AH as height of triangle ABC, with H lies on BC.
Applying sine theorem:
AH/AC = sin 60
=> AH = AC x sin 60 = 47 x sqrt(3)/2 = 40.7
=> Area of triangle ABC is calculated by:
A = AH x BC x (1/2) = 40.7 x 30 x (1/2) = 610.5 = ~611
=> Option C is correct.
Hope this helps!
:)
The answer would be a 1425
Answer:
6
Step-by-step explanation:
first take 3+3=6+12=18+28=46+7=53+12=65
65-60=5 five is answer
Answer:
1. a = 21°
2. b = 70°
3. c = 89°
Step-by-step explanation:
1. Determination of the value of a.
a = 21° (vertically opposite angles are equal)
2. Determination of the value of b.
From the question given above,
110 + b = 180 (sum of angles on a straight line)
Collect like terms
b = 180 – 110
b = 70°
3. Determination of the value of c.
a + b + c = 180 (sum of angles in a triangle)
a = 21°
b = 70°
c =?
21 + 70 + c = 180
91 + c = 180
Collect like terms
c = 180 – 91
c = 89°
