Answer:
54.22 mm
Step-by-step explanation:
Find the circumference of the circle and then divide it by 2.
We start with the formula for the circumference for the circle:
C = 2πr
To find r, divide 22 by 2:
22/2=11
Now find the cicumference:
C = 2πr = 2(3.14)(11) = 108.46 mm
NOW, to find the perimeter of the semicircle, divide the circumference by 2:
108.46/2 = 54.22 mm
Divide 166.47 by 17.9 to get w by itself. The width of the rectangle is 9.3 units.
The value of 4 in 34,256 is 4,000. The value of 4 in 47,163 is 40,000.
Answer:
X=2
EF = 21
Step-by-step explanation:
19x-17= 51-15x
34x = 68
X=2
EF = 51- 15(2)=21
Answer:
52.8 degree
Step-by-step explanation:
x²=1.9²+2.5²
x²=9.86
x = 3.14 this is SQ
using the sine rule :
sin90/3.14 = sinx/2.5
cross multiply
after cross multiply if you are allowed to use a calculator insert shift sin
you only use this when you want to find the unknown sine angle