Answer:
54 cm
Step-by-step explanation:
The area (A) of an equilateral triangle is
A = 
( s is the side length ) then
= 81
( multiply both sides by 4 to clear the fraction )
s² = 324 ( divide both sides by )
s² = 324 ( take the square root of both sides )
s = 
= 18
Thus
perimeter = 3 × 18 = 54 cm
Answer: look at the picture
Step-by-step explanation: hope this help
First get y by its self , then graph , find intersection point and plug in x and y to both equations, see if it makes sense , then the solution must be you intersection point
Hey there! :)
The total measure for triangles is 180°
You already know 2 angles. Add both angles and subtract from 180 to find x
37 + 82 = 119
180 - 119 = 61
m∠x = 61°
Hope this helps :)
Answer: 
Step-by-step explanation:
Given
Principal amount is 25,000
Time Period is 
Rate of interest 
Amount in compound interest is given by
Insert the values
Therefore, must be paid back
