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

1. 2. ∠b and ∠y are right angles. 3.? 4.? which two statements are missing in steps 3 and 4? ∠x ≅ ∠c △abc ~ △zyx by the sas similarity theorem. ∠b ≅ ∠y △abc ~ △zyx by the sas similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem.