Suppose ΔDEF has an exterior angle at vertex D. The measure of the exterior angle is (8x−2)º
, m∠E=(3x−8)°
, and m∠F=(4x+13)°
. What is the measure of the exterior angle at vertex D?

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Ответ:

anilauferc

30.03.2022

Mathematics

1: 660

Step-by-step explanation:

3.8 x 10^2 = 380

2.8 x 10^2 = 280

380 + 280 = 660

2. Fraction

3. Integer

4. A, E, B, C, D.

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Suppose ΔDEF has an exterior angle at vertex D. The measure of the exterior angle is (8x−2)º , m∠E=(3x−8)° , and m∠F=(4x+13)° . What is the measure of the exterior angle at vertex D?