Question

5.
In a triangle, one angle is 100° and other two angles are such that one is lesser in measure by 20
than the other. What are the measures of these two angles?​

Answer 1

Answer:

30° and 50°

Step-by-step explanation:

One angle is 100°.

The other angles are x and x+20

All angles of a triangle add up to 180°.

Thus 100+x+x+20

120+2x=180

2x=60

x=30

Thus one angle is 30°and the other is 50°.

Answer 2

$so \: check \: out \: the \: answer \: down \\ the \: other \: angles \: are \: 50 \: and \: 30 \\ procedure = x + (x - 20) + 100 = 180 \\ 2x = 100 \\ \frac{100}{2} \: \\ = 50 \: degrees \\ so \: now \: other \: angle = 30 \: degrees \\ x - 20 = 50 - 20 = 30 \: degrees$

so,the others angles are = 50° and 30°