Answer:
The answer to your question is 84.8 cm
Step-by-step explanation:
Data
diameter = 27 cm
π = 3.14
circumference = ?
Process
To find the circumference of the flowerpot just find the radius and substitute the values in the formula.
1.- Find the radius
radius = diameter / 2
-Substitution
radius = 27/2 = 13.5 cm
2.- Formula
Circumference = 2πr
-Substitution
Circumference = 2(3.14)(13.5)
-Simplification
Circumference = 84.78 cm ≈ 84.8 cm
9514 1404 393
Answer:
Step-by-step explanation:
ΔBCD is isosceles, so ∠CDB = ∠CBD = x. The sum of angles in the triangle is 180°, so you have ...
x + x + 50° = 180°
2x = 130° . . . . . . . . . subtract 50°, collect terms
x = 65° . . . . . . . divide by 2
__
Triangle ABC is also isosceles, so ∠BAC = ∠BCA = y. Angle ABC is the supplement of angle x. The sum of angles in ΔABC is 180°:
y + y + (180° -x) = 180°
2y - 65° = 0 . . . . . . . . . . subtract 180°, substitute the value of x
y -32.5° = 0 . . . . . . . divide by 2
y = 32.5° . . . . . . . . . . add 32.5°