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Can someone pls help

Can someone pls help
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2 votes
Can someone pls help

Can someone pls help-example-1
User Zakariya Qureshi
by
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1 Answer

2 votes

Explanation:

A triangle has its interior angle sum as 180°


{ \tt{ \angle R + \angle S + \angle T = 180 \degree}}


{ \colorbox{silver}{input \: angles}} \\ \\ { \tt{31 \degree + (x + 4) \degree + (3x + 9) \degree = 180 \degree}} \\ \\ { \tt{44 + 4x = 180 \degree}} \\ \\ { \tt{4x = 136}} \\ \\ { \tt{x = 34}} \\ \\ { \colorbox{silver}{for \:R }} \\ \\ { \tt{ m\angle S =x + 4 = 34 + 4}} \\ \\ { \boxed{ \tt{m \angle S = 38 \degree}}} \\ \\ { \colorbox{silver}{for \:T }} \\ \\ { \tt{m \angle T = 3x + 9 = (3 * 34) + 9}} \\ \\ { \tt{m \angle T = 111 \degree}}

User EJay
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