Question

find the values of the unknowns in each of the following​

Answer 1

Step-by-step explanation:

As AB = AC

angle B=3a

angle C=3a

angle A=2a

A+B+C=180° (Sum of all angles in triangle is 180°)

3a+3a+2a=180°

8a=180°

a=180/8

a=2.25 or 45/2

A=2×2.25

A=4.50

Answer 2

Answer:

Step-by-step explanation:

a) As AB = AC

   angle B=3a

 

   angle C=3a

   angle A=2a

   A+B+C=180° (Sum of all angles in triangle is 180°)

   3a+3a+2a=180°

   8a=180°

     a=180/8

a=2.25

 

A=2×2.25

A=4.50

Step-by-step explanation:

b) Let us take an angle x

     32 degrees= x

ANGLE x= 32 degrees.

      Angle x= Angle C

             ANGLE C= 32 DEGREES.

ANGLE B= 2 TIMES OF ANGLE X( EXTERIOR ANGLE OF A TRIANGLE

                                                                                                       PROPERTY).

             ANGLE B= 64 DEGREES.

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