2 years ago

Please help me with the answer!! There is the picture of the problem^

Mathematics

2 answers:

Greeley [361]2 years ago

6 0

Answer:

A = 84º

B = 74º

C = 22º

Step-by-step explanation:

Since all the three angles of a triangle have to add up to be 180º, one can do...

A + B + C = 180º

So,

(4x+12) + (3x+20) + (x+4) = 180º

8x + 36 = 180º

8x = 144

x = 18

Then you just substitute x in each of the angles

A = 4(18) + 12 = 84º

B = 3(18) + 20 = 74º

C = (18) + 4 = 22º

***Math Check: 84 + 74 + 22 = 180º

inessss [21]2 years ago

4 0

Answer:

X=18

Step-by-step explanation:

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