Answer:
y=x
Step-by-step explanation:
Answer:
Step-by-step explanation:
<em>17.</em>
sin20° = 
x = 1 ÷ sin20°
<em>x</em> ≈ <em>2.9238</em>
cos20° = 
y = x ÷ cos20°
<em>y</em> ≈ 2.9238 ÷ cos20° ≈ <em>3.11</em>
<em>18.</em>
<em>x = 2√3</em> ≈ 3.46
<em>y = √3</em> ≈ 1.732
They would be similar triangles because they cannot be congruent due to the fact that the side lengths are different. They are dilutions of each other which again proves that they are similar, not congruent.
Answer:
£14.29
Step-by-step explanation:
0.98x=14
x=14.29
Answer:
- Area of the circle is 56.25π square feet.
Step-by-step explanation:
<u>Given that</u>:
- The circumference of a circle is 15π ft.
<u>To Find</u>:
- What is the area, in square feet?
<u>We know that</u>:
- Circumference of a circle = 2πR
- Area of a circle = πR²
Where,
<u>Finding the radius of the circle</u>:
Circumference of a circle = 15π
⟶ 2πR = 15π
⟶ 2πR = 2π × 7.5
Cancelling 2π.
⟶ R = 7.5
∴ Radius of the circle = 7.5 ft.
<u>Finding the area of the circle</u>:
⟶ Area = πR²
⟶ Area = π(7.5)²
⟶ Area = π × 7.5 × 7.5
⟶ Area = π × 56.25
⟶ Area = 56.25π
∴ Area of the circle = 56.25π ft.²
