Answer:
In a quadrilateral ABCD, ∠A = 100°, ∠B = 105° and ∠C = 70°, find ∠D.
Solution:
Here the sum of the four angles
or, ∠A + ∠B + ∠C + ∠D = 360°
We know, ∠A = 100°, ∠B = 105° and ∠C = 70°
or, 100° + 105° + 70° + ∠D = 360°
or, 275° + ∠D = 360°
∠D = 360° - 275°
Therefore, = 85°
i hope this was helpful. <3
crown?
4.2
Step-by-step explanation:
5.7-1.5=4.2
7
median is the number at the center of the rest
3,1,8], 7 [,6,5,1
4
i dont really know how to explain i used an algebra calculator
45?
C is -2
because A its 6
B its 2
C its -2
D -6
hope this helps