Question

Two angles of a triangle are 45° and 61°. Find the third angle. *

1 point

74°

86°

66°

​

Answer 1

Answer:

Let the third angle = x

The sum of the angle of the triangle = 180°

45°+61° + x = 180°

106°+x =180°

x = 180°-106°

x = 74°

So the answer will be 74°

Step-by-step explanation:

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Answer 2

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$\bigstar\underline{\bf{Question}}$

$\mapsto\sf{Two \: angles\: of \: a \: triangle \: are \: 45\degree\: and \: 61\degree \:}$

$\bigstar\:To \: find\: \underline{\bf{The\: value \: Third \: Angle}}$

$\: \underline { \underline{ \sf \color{purple} \dagger \: properties}}$

$\star \bf{sum \: of \: three \: angles \: of \: triangle \: is \: equals \: to \: 180 \degree}$

$\divideontimes \underline{ \boxed{ \bf \color{red} \: answers}}$

$\\ \dashrightarrow\displaystyle\sf{\angle A+\angle B+\angle C=180\degree}$

$\\ \dashrightarrow\displaystyle\sf{45\degree+61\degree+\angle C=180\degree}$

$\\ \dashrightarrow\displaystyle\sf{106\degree+\angle C=180\degree}$

$\\ \dashrightarrow\displaystyle\sf{\angle C=180\degree-106\degree}$

$\\ \dashrightarrow\displaystyle\sf{\angle C=74\degree}$

$\underline{\boxed{\bf \angle C=74\degree}}$