The correct answer is 18. She went wrong because she solved the equation in the wrong order she did 16+8, then got 24 then solved the exponent got 4 then divided 24 by 4 getting 6
Distance = sqrt (x2 - x1)^2 + (y2 - y1)^2
(1,2)...x1 and y1
(4,8)...x2 and y2
now we sub
distance = sqrt (4 - 1)^2 + (8 - 2)^2
distance = sqrt (3^2 + 6^2)
distance = sqrt (9 + 36)
distance = sqrt (45)
distance = 6.7 <===
The radius = half the diameter
Area of circle=3.14r^2
R=24.4/2=12.2
Plug in r
3.14×12.2^2
3.14×148.84= 467.3576
Round to the nearest hundredth
Hundredth = second number after the decimal
467.36m^2
Area equals width times length. A=W×L
so if you fill in what you know which is 5=10×L
now divide by 10 to get L alone and you get
0.5=L
Answer is c is a exterior angel because
it is formed