Question
The Question is:
Three angles in a triangle are given by 4x+10, 3x+15, and 2x+20.
a) Draw a diagram, and write an equation linking these angles together.
b) Solve the equation for x.
c) State the value of the three angles in the triangle.
What I want to know:
- What type of triangle would it be?
- How would you write an equation that shows their 'relationship' with one another?
- Where would you start when solving for x?
Three angles in a triangle are given by 4x+10, 3x+15, and 2x+20.
a) Draw a diagram, and write an equation linking these angles together.
b) Solve the equation for x.
c) State the value of the three angles in the triangle.
What I want to know:
- What type of triangle would it be?
- How would you write an equation that shows their 'relationship' with one another?
- Where would you start when solving for x?
Answers
oobleck
4x+10 + 3x+15 + 2x+20 = 180
find x, and then the rest is easy
find x, and then the rest is easy
Kenny
4x+10+3x+15+ 2x+20=180
9x+45=180
Divide through by 9
x+5=20
X=20-5=15
Plug the value of x into
(4x+10)°=
(3x+15)°=
(2x+20)°=
9x+45=180
Divide through by 9
x+5=20
X=20-5=15
Plug the value of x into
(4x+10)°=
(3x+15)°=
(2x+20)°=