Answer:
20
Step-by-step explanation:
62,000 is reasonable (because of rounding)90*690=62,000
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°
Answer:
D
Step-by-step explanation:
Given that the segment is an angle bisector then the ratio of sides and base are equal, that is
= ( cross- multiply )
10x = 72 ( divide both sides by 10 )
x = 7.2 → D