Question

Questions 1, 2, and 3. Help!

Answer 1

1. 90 2. 130 3. 55

Explanation:

Every triangle when you add all the angles will = 180 degrees for this you add the 2 angles that you have and subtract it from 180

1. 35+55+ C = 180

90 = 180

C = 90

2. 25+25+C = 180

50 + C = 180

C = 130

3. 62 + 63 + C = 180

125 + C = 180

C = 55

Answer 2

Explanation:

sum of all the angles of triangle = 180

1) ∠1 + ∠2 + ∠3 = 180

35 + 55 + ∠3 = 180

90 + ∠3 = 180

∠3 = 180 -90

∠3 = 90

If one angle is 90, then, it is a right angled triangle.

2) 25 + 25+ ∠3 =180

50 + ∠3 =180

∠3 =180 -50

∠3 = 130

If two angles are equal, then it is an isosceles triangle.

3) 62 + 63 + ∠3 =180

125 +∠3=180

∠3 = 180-125

∠3 = 55

All the angles are different, so it is a scalene triangle