Circumference can be calculated by 2pi*r where r is the radius.
So 2*3.14*6.1 = 38.308
To the nearest tenth, the answer is 38.3 cm
Answer:
x = 20
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Using ΔAHC , then
∠ACH = 180 - (2x + 100) = 180 - 2x - 100 = 80 - 2x
∠ECD = ∠ACB ( vertical angles are congruent ), thus
∠ECD = ∠ACH + ∠HCB, that is
3x = 80 - 2x + x
3x = 80 - x ( add x to both sides )
4x = 80 ( divide both sides by 4 )
x = 20
1/2 * 5 = 2.5.
You would need 2.5 boxes to build 5 birdhouses.
45 degree between Oak street and Elm Street.
