The smaller triangle has a ratio of 11 : 10.
The smaller triangle and the larger triangle should have the same ratio.
The total of the left side of the larger triangle is 132cm
The ratio of the larger triangle is:
132 : (5x + 10) + 10
132 = 5x + 20
If you multiply the 11 : 10 ratio by 12, you get:
132 : 120
Since you know the other side should equal 120, to find x you do:
5x + 20 = 120
5x = 100
x = 20
Answer:
The length is 13, when the width is 11
Step-by-step explanation:
The width is x, when the length is x+2. The area is x(x+2)= x^2+2x.
The perimeter is (x+x+2)*2= (2x+2)*2=4x+4
THe thrre times perimeter is 3(4x+4)= 12x+12
x^2+2x= 12x+12-1
x^2+2x-12x-11=0
x^2-10x-11=0
x=-1 (not suitable); x=11 - the width
The length is 11+2=13
Answer:
x= -3/4
Step-by-step explanation:
Combine like terms
21x+17=x+2
-17. -17
21x= x-15
-x -x
20x= -15
Divide
x= -0.75 or -3/4
Y=1/16x^2. This is the answer because you find the focus using the equation y=1/4px^2 and the directrix is opposite the focus
A. Postulate: If parallel lines are cut by a transversal, then corresponding angles are congruent.
b. Theorem: Vertical angles are congruent.
c. Congruence of angles is transitive.
(or Substitution)