Answer:
76.5 cm²
Step-by-step explanation:
Given the triangles are similar , then
ratio of sides = a : b , so
ratio of areas = a² : b²
Here ratio of sides = 9 : 13.5 = 2 : 3
ratio of areas = 2² : 3² = 4 : 9
let x be the area of Δ DEF and using proportion
=
( cross- multiply )
4x = 306 ( divide both sides by 4 )
x = 76.5
The area of Δ DEF = 76.5 cm²
Answer:
Randomly select 50 tickets from each zone and invite those guests to participate in the survey.
Step-by-step explanation:
I hope this helped
Work = (force) x (distance)
= (200 lb) x (10 ft) = 2,000 ft-lbs .
Answer:
6 Weeks
Step-by-step explanation: