Respuesta :
With the given triangles ΔRST and ΔXYZ, it is equilateral triangles and the ratio of the perimeter is 1:3
Perimeter ΔRST/ Perimeter ΔXYZ = 1/3
We are asked to solve for the area of ΔXYZ when the area of ΔRST is 10.825 in². The solution is shown below:
Area ΔRST/ Area ΔXYZ = 1/3
10.825 / Area ΔXYZ = 1/3
Area ΔXYZ = 3* 10.825
Area ΔXYZ= 32.475 in²
Perimeter ΔRST/ Perimeter ΔXYZ = 1/3
We are asked to solve for the area of ΔXYZ when the area of ΔRST is 10.825 in². The solution is shown below:
Area ΔRST/ Area ΔXYZ = 1/3
10.825 / Area ΔXYZ = 1/3
Area ΔXYZ = 3* 10.825
Area ΔXYZ= 32.475 in²
Answer: A
Step-by-step explanation: 97.4 in2
A =
3
4
s2
s2 =
4A
3
s2 =
4(10.825)
3
s2 = 25
s = 5
then,
1
3
=
5
x
x = 15
thus, side lengths of ΔXYZ is 15.
A =
3
4
152
A = 97.428