Step-by-step explanation:
CB is the Hypotenuse of the right-angled triangle CDB.
Pythagoras :
CB² = 20² + 21² = 400 + 441 = 841
CB = sqrt(841) = 29
=> radius = 29/2 = 14.5
the total circumference of the circle (360 degrees) is
2×pi×r = 29×pi
but here we need only the part of the circumference for 180-70= 110 degrees.
CD arc = 29×pi × 110 / 360 = 29×pi×11/36 =
= 27.83800157 ≈ 27.84 cm
Answer:
i belive it to be A
Step-by-step explanation:
because it does say 6 by 7 by 3 so i would add 3+7 it would give me ten so i belive it to be A. hoped this helped lmk if it did
When 
the perimeters of both figures will be equal.
Step-by-step explanation:
Step 1:
The triangle has side lengths of 
and 
.
The perimeter of the triangle is the sum of the lengths of the sides.
The perimeter of the triangle 
Step 2:
The perimeter of the hexagon is 6 times its side length. The side length 
The perimeter of the hexagon
Step 3:
To determine the value at which both the perimeters are equal, we equate both the equations to each other.
So when the perimeters of both figures will be equal.
Ninety thousand five hundred twenty three
Answer:
A : 22%
B : 25%
Step-by-step explanation:
I am not certain about the B answer but the A I am confident in as you have to multiply the possible percentage by one another as they are co-dependent upon the outcome.
