Answer:
Angle 3 would equal 140 degrees.
Step-by-step explanation:
Angle 4 and the angle beside angle 3 are Alternate Exterior Angles, this making them equivalent to each other. With them both being 40 degrees, Angle 3 and A would equal 140 degrees to equal the total of 180 degrees.
The two sides of the triangle have equal length. The triangle which has equal length on the two side is iscosceles triangle.
The two angles are both acute because they are both 64°. To know whether it's acute or obtuse triangle, we should know the value of third angle. The third angle will define if the status acute/obtuse in triangle.
The sum of angles in triangle is 180°
64° + 64° + the third angle = 180°
128° + the third angle = 180°
the third angle = 180° - 128°
the third angle = 52°
Because all of the angles are acute (below 90°), the triangle on the picture is acute.
The final answer: iscosceles and acute
Answer:
Step-by-step explanation:
Formula : If a and b be any two vector , then the dot product of and b is given by , where is the angle between them.
As per given , we have
IaI =3, IbI = 5
Then,
(∵ cos (π-x)=-cos x)
[∵ ]
Therefore ,
Answer:
3.5x
Step-by-step explanation:
Put into numbers, [4*x+(3x)]*1/2. You cant completely solve for x in this, as we would need an answer with no variable. But, 4*x=4x, and 4x+3x=7x because we would need to combine like terms. But you still need to cut it in half. Half of 7x is 3.5x, so there ya go!
Answer: 5/6
Step-by-step explanation: trust me on this