Question

PICTURE ONE IS FOR THESE BELOW

What is the value of ∠DOB in the following figure?
The measure of an angle is 89°. Find the measure of its supplement.
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Determine if triangles can be formed with the following side lengths:

1.) 4 cm, 7 cm, 10 cm


2.) 24 mm, 20 mm, 30 mm

Answer 1

1: n=17

2: x=24 w=37

Explanation:

1st picture: 180-108=72/2=34/2=17=n

2nd Picture: 90+19= 109

109+x+w=180

138+90=228

270-228=52

138+52+90+19=299

360-299=61

x=24 w= 37