Question

1.A triangle in which two angles are 40⁰and 50⁰, is _______.

(1) Isosceles triangle

(2) Equilateral triangles

(3) Acute triangle

(4) Right triangle​

Answer 1

Answer:

4) Right triangle

Step-by-step explanation:

Let a , b , c be angles if triangle.

a = 40° , b = 50°

Now , a + b + c = 180°

40° + 50° + c = 180°

c = 90°

Since the triangle contains a right angle , it is a right triangle.

Hope it helps

Answer 2

Answer:

4

Step-by-step explanation:

Two angles are Complementary when they. add up to 90 degrees (a Right Angle ).