Question

If the angles of a quadrilateral are

(2x+9)°, (x-2)°, (3x+8)° and (4x+5)°.

What is the measure of largest interior

angle of the quadrilateral?

please answer fast !!!​

Answer 1

Answer:

2x+9 + x-2 + 3x+8 + 4x+5 = 360⁰

10x +20 = 360⁰

10x = 360⁰-20⁰

10x= 340⁰

x = 340⁰/10

x = 34

angles are (2x+9) =(2×34+9) = 68 + 9 = 77⁰

(x-2) = (34-2) = 32⁰

(3x+8) = (3×34+8) =( 102+8)= 110⁰

(4x + 5) = (4×34+5) = (136+5) = 141⁰

largest angle be 141⁰