Answer:
65°
Step-by-step explanation:
To obtain Angle A, we use the cosine rule ;
Cos A = (b² + c² - a²) / 2bc
Cos A = (12² + 14² - 14²) / 2(12)(14)
Cos A = 144 / 336
A = Cos^-1(144/336)
A = 64.62°
A = 65°
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-> See attached
115.893 meters²
See attached for my sketch.
Area for a rectangle is A = L * W:
9.78 meters * 11.85 meters = 115.893 meters²
1. A
2. B
3. (-3.5 , -6) --- III
(-4 , 0)------- x-axis
(9 , -2)------- II
(8 , 3)-------- I
c 435
took the test
5) 1:2(1/2) 6) 1:4 (1/4)
5) At 3 girls, there is 6 boys, and 3/6 = 1/2
6) At 2 girls, there is 8 bracelets, and 2/8 = 1/4
