Answer:
Angles in a triangles add up to 180°
Respectively 1 : 2 : 3 is going to be 1 x , 2 x and 3 x so,
1 x + 2 x + 3 x = 180°
⇒ Simplify
6 x = 180°
⇒ Divide by 6 on both sides to isolate x
x = 30°
Since the ratio was 1 x : 2 x : 3 x and x is 30°,
30 : 60 : 90
And since there is a 90° angle, it is a right - angled triangle
Answer:
No
Step-by-step explanation:
Speed: 300 mi/hr, Gives how fast you go
Velocity: 300 mi/hr west, includes speed and direction
Acceleration: No, it does not say a starting speed or if it was a constant speed.
Hope this helps :)
Hey!!
4x²-0x-9
=(2x)²-(3)²
=(2x-3)(2x+3)
so option B
B. 40
Explanation:
40+10= 50, 2x40= 80, 50
50+50+80= 180
(180 degrees in a triangle)
