Answer: 130
In order to solve for <4, you need to know that supplementary angles add up to 180°.
<3 = 50
180 - 50
130
**For future questions**
1. The sum of the interior angles of a triangle is 180°
2. Alternate interior angles are congruent
3. The exterior angle of a triangle is the sum of the nonadjacent interior angles
See attachment below.
Fraction refers to a part of a whole; e.g when cup is not completely filled, it covers only a part of the cup
<h3>What is fraction?</h3>
The term fraction refers to a part of a whole. To design an instructional activity that could help learners recognize that decimal fractions can be applied across environmental situations, we could look at certain things in the house.
For instance, when cup is not completely filled, it contains water that covers only an fraction of the cup. Also, we could boil a part and not a whole cup of rice. These are all examples of fractions.
Learn more about fractions:brainly.com/question/10354322
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2L+2W=72
L=3W+4
2(3w+4)+2W=72
6w+8+2W=72
8+8W=72
-8 -8
8W=64
W=8 L=28