area = pi x r^2
circumference = 2x pi x r or pi x d
1st one diameter = 9.5 cm
so radius = 9.5/2 = 4.75
area = 3.14 x 4.75^2 = 70.85 square cm
circumference = 3.14 x 9.5 = 29.83 cm
2nd one radius = 4
area = 3.14 x 4^2 = 50.25 square cm
circumference = 2 x 3.14 x 4 = 25.12 cm
Answer:
1 : 2
Step-by-step explanation:
Given that,
amount of coloured fabric Gordon use to make his curtain = 24mm
amount of white fabric Gordon use to make his curtain = 1.2cm
To find,
ratio of the amount of white fabric to coloured fabric
1 cm = 10mm
1.2 cm = 1.2 * 10
= 12 mm
<h3>Ratio</h3>
12 / 24
1 / 2
1 : 2
So, ratio of the amount of white fabric to coloured fabric is 1 : 2
Answer: Angle 1 is 129 degrees. Angle 2 is 51 degrees.
Step-by-step explanation: 129+51=180 129-51=78
