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Digiron [165]
3 years ago
13

A triangle has two angles measuring 90° and 50%, calculate the third angle of the triangle,

Mathematics
2 answers:
natta225 [31]3 years ago
7 0
B. Because since all angles are equal to 180 you have to do 180-90-50 which equals 40
Ostrovityanka [42]3 years ago
4 0
The answer is 40


the measure of third angle of the triangle is 40°
step-by-step explanation:
given : measure of two angles of a triangle as 90° and 50°
we have to find the measure of the third angle of the triangle.
angle sum property of a triangle states that the sum of angles of a triangle is always 180°
let for the given triangle abc,
with m∠a = 90° and m∠b = 50°
then according to angle sum property stated above,
∠a + ∠b + ∠c = 180°
90° + 50° + ∠c = 180°
140° + ∠c = 180°
∠c = 180° - 140°
simplify, we get,
∠c = 40°
thus, the measure of third angle of the triangle is 40°
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