glw
glw glw
  • 01-06-2017
  • Mathematics
contestada

Please help i don't know the answer to number 11

Please help i dont know the answer to number 11 class=

Respuesta :

padawan
padawan padawan
  • 01-06-2017
the length of midpoint connected size is half of the size of the triangle that it's parallel to. that's means lengh of sizes are half of the original.

area of triangle with known side a, b, c
s = (a+b+c)/2
area = sqrt(s(s-a)(s-b)(s-c))

area of midpoint triangle wih side a/2, b/2, c/2
s' = (a/2+b/2+c/2)/2 = (a+b+c)/4 = s/4
area' = sqrt(s'(s'-a/2)(s'-b/2)(s'-c/2))
= sqrt(s/2(s/2-a/2)(s/2-b/2)(s/2-c/2))
= (1/4)sqrt(s(s-a)(s-b)(s-c)) = (1/4)area

answer is 1/4
Answer Link

Otras preguntas

A rectangle is nine inches longer than it is wide, and its diagonal is 10 inches longer than its width. What is the width of the quadrilateral?
I placed 94 WPM typed with 93% accuracy. I need a pro to tell me how get that is compared to professional typists.
Why did critics say roosevelt's "court-packing" plan would disrupt the checks and balances of the government's branches?
The ends of a pipe when measured with a tape measure that has marks every millimeter are exactly at the 0 mark and the 15 meter mark. how would you record this
Please isolate x in the following equation. x=y+xy
34=−2t can u help me
Alvin is 6 years older than Elga. The sum of their ages is 106 . What is Elga's age?
What is the value of x? A. 68° B. 62° C. 112° D. 124
A respected developmental theorist who proposed a comprehensive life-span theory
Solve the equation and write the solution set. Show all work |4x-8|-3x=6x+2