For ΔABC, m∠A = 2x m∠B = x m∠C = 3x What is m∠C?

A.

20°

B.

30°

C.

90°

D.

120°

Question

Raymond Ward

Mathematics

30 September, 04:55

For ΔABC, m∠A = 2x m∠B = x m∠C = 3x What is m∠C?

A.

20°

B.

30°

C.

90°

D.

120°

+5

Answers (1)

Know the Answer?

Sonia Holloway · Answer 1

The sum of the 3 angles of a triangle need to equal 180 degrees.

Using the information in the problem you have:

2x + x + 3x = 180

Simplify:

6x = 180

Divide each side by 6:

X = 180 / 6

x = 30

Angle C = 3x = 3 (30) = 90 degrees.

The answer is C.

For ΔABC, m∠A = 2x m∠B = x m∠C = 3x What is m∠C?A.20°B.30°C.90°D.120°

For ΔABC, m∠A = 2x m∠B = x m∠C = 3x What is m∠C?

A.

20°

B.

30°

C.

90°

D.

120°