Question

4. Two angles of a triangle are 30º and 70°. Find the third angle.
5. Find the ratio of 9m to 450cm.​

Answer 1

Step-by-step explanation:

4- 180°-(30°+70°)=80°

5- 1:50

Answer 2

4=

let third angle be x

sum of angles of traingal = 180 °

30°+70°+ x=180°

x=180°-100°

x=80°

5=

9/450=

1/50

answer=1:50

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