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3 years ago

Please help!

Mathematics

2 answers:

Hatshy [7]3 years ago

5 0

9514 1404 393

Answer:

(a) x = 22

(b) 46°

(d) 180°

Step-by-step explanation:

Because the sum of the interior angles of a triangle is 180°, we know that the sum of the acute angles in a right triangle is 90°.

The sum of the marked acute angles is 90°.

2x +(3x -20) = 90

5x = 110 . . . . . . . . . . add 20, collect terms

x = 22 . . . . . . . . . divide by 5

∠CBA = (3x -20)° = (3·22 -20)° = 46°

∠CAB = 2x° = 2(22)° = 44°

The sum of a triangle's interior angles is 180°.

Nimfa-mama [501]3 years ago

5 0

i dont know but you will get it one day

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