Question

answer the question with solution plz plz​

Answer 1

(5)

Let the other acute angle = x.

One angle = 60 and other = 90.

Sum of angles of triangle = 180.

=> x + 60 + 90 = 180

=> x + 150 = 180

=> x = 30

Hence, other angle is 30°.

(6)

Let the angles be a,b,c.

Sum of angles in a triangle = 180  

a + b +  c = 180---- (i)

One angle is equal to sum of other two sides.

a + b = c   ---- (2)

Solve (1) and (2),

=> 2(a + b) + c = 180 + c

=> a + b = 90

Hence, it is right angled triangle.

#BeBrainly

Answer 2

Answer:

5) another acute angle = 30°

6) proof in the attachment

Step-by-step explanation: