Question

If 2 angles of a triangle are 63° and 28°, then the third angle is *

Answer 1

Answer:

sum of angles of a triangle is 180

then the thrid angle is 89

Answer 2

$Given \: 63\degree \:and \:28\degree \:are \: two$

$angles \: of \: a \: triangle$

$Let \: the \:third \: angle = x \degree$

$Sum \: of \: the \: angles = 180\degree$

$\blue{ ( Angle \: sum \: property )}$

$\implies 63 + 28 + x = 180$

$\implies 91 + x = 180$

$\implies x = 180 - 91$

$\implies x = 89\degree$

Therefore.,

$\red{Value \: of \: third \: angle}\green { = 89\degree }$

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