10.
50+(2x)=20+(5x)
-20 -20
-2x -2x
30=3x
divide both sides by 3
10=x
Answer:
40°
Step-by-step explanation:
It's half the angle at the centre
½×80 = 40
Answer:
150÷48=3hrs and 125minutes
Step-by-step explanation:
speed =distance/time
Octagans have 8 sides.
Perimeter is thought of as the length a piece of string would be if it was layed around the edges of the shape.
There are 8 sides, each 12units in length.
Perimeter=8*12=96units
