Question

. If one angle of a triangle is equal to the sum of the other two angles, then the triangle is :

a. an isosceles triangle

b. an equilateral triangle

c. a right triangle

d. an obtuse angled triangle​

Answer 1

Answer:

a right angle triangle is that triangle whose one angle sum is equal to the sum of the other two angles

Step-by-step explanation:

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Answer 2

Answer:

right angle triangle

step by step explanation:-

In triangle ABC

<A=<B+<C —(i)

by angle sum property

<A +<B +<C =180°

by equation i ,we get

<A +<A=180°

2 <A=180°

<A=90°

proved right angle triangle

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