Question

ANSWER THE ALL QUESTIONS THESE ARE URGENT ​

Answer 1

Answer:

Ans 5

Each base angle = 36*2 = 72 degrees. IN AN ISOSCELES TRIANGLE EACH OF THE BASE ANGELS IS TWICE THE VERTICAL ANGLE. ... Triangles have angles.

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Answer 2

Step-by-step explanation:

6) The ratio of angle BAC and ABC is 6:7

Let these angles be (6×x)° and (7×x)°

=6x° and 7x° respectively

Angle C = 50°

By condition

6x°+7x°+50° = 180° (Angle sum property)

6x+7x+50 = 180

13x = 180-50

13x = 130

x = 130/13

x = 10

Angle BAC = (6×10)° =60°

Angle ABC = (7×10)° =70°

7) The ratio of angles of a triangle is 3:7:5

Let these 3 angles be (3×x)°,(7×x)°,(5×x)°

= 3x°, 7x°, 5x°

By condition

condition 3x°+7x°+5x° = 180°

condition 3x°+7x°+5x° = 180°3x+7x+5x = 180

condition 3x°+7x°+5x° = 180°3x+7x+5x = 18015x = 180

condition 3x°+7x°+5x° = 180°3x+7x+5x = 18015x = 180x = 180/15

condition 3x°+7x°+5x° = 180°3x+7x+5x = 18015x = 180x = 180/15x = 12

condition 3x°+7x°+5x° = 180°3x+7x+5x = 18015x = 180x = 180/15x = 12The three angles are

condition 3x°+7x°+5x° = 180°3x+7x+5x = 18015x = 180x = 180/15x = 12The three angles are(3×12)°, (7×12)°, (5×12)°

condition 3x°+7x°+5x° = 180°3x+7x+5x = 18015x = 180x = 180/15x = 12The three angles are(3×12)°, (7×12)°, (5×12)°= 36°,84°,60°