Important notes:
3 sides 1 angle - COSINE RULE
2 sides 2 angle - SINE RULE
since, the question wants to find the length of BC. In the end we will have 3 sides and 1 angle and use cosine rule
formula of cosine rule:
a² = b² + c² - 2bc Cos A° (to find the length)
Cos A° = b² + c² - a² / 2bc ( to find the angle, if there is given three sides and have to find the angle)
So just substitute,
a² = 13² + 15² - 2(13)(15) Cos 95°
a = 20.6 or 21
137 paquetes de vasos, aunque el último nomas contiene 7 vasos se necesita el paquete para que no queden sin empacar
Answer:
The answer is
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Step-by-step explanation:
The midpoint M of two endpoints of a line segment can be found by using the formula
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where
(x1 , y1) and (x2 , y2) are the points
From the question the points are
(-15,4) (2,-10)
The midpoint is
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We have the final answer as
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Hope this helps you