Maxwell8066
27.02.2021 •
Mathematics
The ratio of the interior angles of a triangle is 3 : 3 : 4. What are the angle measures? Use the equation 3x + 3x + 4x = 180.
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Ответ:
The sum of interior angle =180
given;
3x +3x +4x =180
10x = 180
x =180/10
x =18
so put the value of x =18 in 3x, 3x and 4x
= 3x
=3 ×18
= 54
2nd one = 4 x
= 4×18
= 72
All three angles are 54,54,72
Step-by-step explanation:
Ответ:
x + y = 4
If you want to solve the system of equations by addition
Multiply thru the bottom equation by -5::
5x + 2y = 8
-5x-5y = -20
---
Add and solve for "y":
-3y = -12
Divide by -3 to get:
y = 4
---
Solve for "x":
x + y = 4
x + 4 = 4
x = 0