Question

in triangle measures of two angles are 30 degree and 90 degree then the find the third angle

Answer 1

Answer:

60

Step-by-step explanation:

90+30+ × =180

×= 180 - 120

x= 60

Answer 2

Answer:

Concept: sum of triangle is 180°

GIVEN: one angle is 30° and other is 90°   of an triangle.

GIVEN : third angle

Step-by-step explanation:

in a triangle , we know that sum of all three angle is 180°.

so, let the third angle be x .

now, 30+90+x=180

so, x=180-120

so, x=60°

therefore, the third angle is 60°

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