Question

plss answer my 14 ,15,16,17,18 questions pls need help​

Answer 1

Answer:

Q15 let the three angles of triangle be 2x,3x,4x

as we know angle sum property of the triangle, by using it we get ,

2x+3x+4x = 180

9x= 180

x=20

hence , 2x = 2(20) = 40

3x= 3(20)= 60

4x=. 4(20)= 80 .

We concluded that three angles of triangle are 20°, 60°,80°.

Answer 2

Answer:

For 14

Step-by-step explanation:

let the angles of triangle be 2x, 3x, and 4x

by angle sum property

sum of angles of a triangle is equal to 180

therefore, 2x+3x+4x= 180

9x=180

x=20

therefore, 2x=40, 3x=60 and 4x=80

three angles of triangle are 40,60 &80