ayhamibrah69 ayhamibrah69

03-03-2021
Mathematics

contestada

find the number of degrees in

find the number of degrees in class=

Respuesta :

bigdogalex bigdogalex

03-03-2021

Answer:

110º

Step-by-step explanation:

The two given angles are co-interior angles, and add up to 180º.

So, set up an equation.

3x+4 + 5x = 180

8x = 176

x = 22

Now, angle D is also cointerior to angle C, meaning THEY add up to 180 as well.

D + 3x+4 = 180

sub x=22

D + 3(22)+4 = 180

D = 180 - 70

D = 110

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