Question

Mental Maths
1 The angles de Triangle are 10 and 20
find the third angle and Tell what
kind of triangle it is.​

Answer 1

150

Step-by-step explanation:

a triangle has three angles

sun of triangle is 180

10+20+x=180

30+x=180

x=150

it is a scalene triangle

a scalene triangle is a triangle in which sides are irregular and angles too

Answer 2

Answer:

150

Step-by-step explanation:

sides of triangle are 10 and 20 and let 3rd side be x.

sum of triangle is 180

so,

10+20+x=180

30+x=180

x=180-30

x=150

type of triangle=scalene

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