Step-by-step explanation:
We have AB = 7, Angle ABC = 70°
and Angle ACB = 90°.
Angle BAC = 180° - 70° - 90° = 20°
(Sum of angles in a triangle = 180°)
Using Trignometry,
AC = 7sin70° = 6.58.
BC = 7cos70° = 2.39.
Answer:
Step-by-step explanation:
Angles in a triangle add up to 180°
Angles on a straight line add up to 180°
Answer:
The slope of the given two points is 
Step-by-step explanation:
Given two points are (-5,2) and (3,9)
To find the slope with these two points
Let 
and 
be the given points
By using Slope Formula:
( subtracting and adding the corresponding terms)
Therefore slope is
The slope of the given two points is
Answer:
12.7
Step-by-step explanation:
12.7
Basically u are gonna wanna use pythagoras first
BC = √(12^2 - 6^2) = √(144 - 36) = √(108) = 10.39230485
Also the Side Angle Side rule comes into play use the following
BC/sin(55) = CD/sin(90) <----- angle
BC/sin(55) = CD/sin(90)
sin(90)BC/sin(55) = CD
1*BC/sin(55) = CD
BC/sin(55) = CD
10.39230485/0.819152044 = CD
12.68666167 = CD
12.7 = CD
14.56, use this for anything else you may need. https://www.thecalculator.co/math/Rounding-Calculator-345.html
