Answer:
11cm
Step-by-step explanation:
Answer:
f= h/12
Step-by-step explanation:
The value of DF = 20.
<h3>What is similarity?</h3>
Two objects are similar if they have the same shape, or one has the same shape as the mirror image of the other.
Given:
Using theorem
If two triangles are similar, then the ratio of the area of both triangles is proportional to the square of the ratio of their corresponding sides.
ΔSDF/Δ RTY = (SD/RT)= (DF/TY)= (FS/ YR)
ar ΔSDF² / ar ΔRTY² = 16/81
SD/ RT = 4/9
SD = 4x, RT= 9x
SD= 8
4x = 8
x = 2
So,
RT= 9*2 = 18
SF = RT -2
SF = 16
(SD/RT)= (FS/ YR)
8 / 18 = 16/ YR
YR= 36
TY= 9 +RY = 45
(DF/TY)= (FS/ YR)
DF / 45= 16/ 36
DF=20
Learn more about similarity here:
brainly.com/question/25882965
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Answer:
2340
Step-by-step explanation:
The sum of the interior angles of a polygon is
sum = 180 (n - 2) ← n is number of sides
Here n = 15 , then
sum = 180 × 13 = 2340
subtract y over
8x=14-y
divide by 8
x=(14-y)/8 or x=(7/4)-(y/8)
