Answer:
You are correct great job! I believe you did
1/4 × 1/9 = 1/36 If so thats exactly the right method!
12. ∆ABD is similar to ∆PQD, so
QD/z = BD/x
Likewise ∆CDB is similar to ∆PQB, so
QB/z = BD/y
Since QD + QB = BD, you have
QD/z + QB/z = BD/x + BD/y
BD/z = BD/x + BD/y
Dividing by BD gives the desired result:
1/x + 1/y = 1/z
13. Triangles ABD, BCD, and ACB are all similar. This means
AB/AC = AD/AB
AB² = AC×AD = (4 cm)×(9 cm)
AB² = 36 cm²
AB = 6 cm
and
BD/CD = AD/BD
BD² = CD×AD = (5 cm)×(4 cm)
BD² = 20 cm²
BD = 2√5 cm
Answer:
x=30,F=1260,y=6
Step-by-step explanation:
is what your looking for
Answer:
11.25 feet
Step-by-step explanation:
The model is 1/5 or 0.2 smaller than the original water tower
0.2 x water tower height = 2.25
water tower height = 2.25 / 0.2 = 11.25
12/9÷5/20
=12/9*20/5
=4/3*4
=16/3 ans..
