Answer:
23
Step-by-step explanation:
Because the angles of a triangle always add up to 180°, you can set up an equation like this.




Answer:
12.5
Step-by-step explanation:
Answer:
the answer would be C
Step-by-step explanation:
the opposite of exponents is square root it
The <span>isosceles triangle has two congruent sides
Their lengths are (</span> x + 3.8 ) and <span>16
Equate them :
x+3.8=16
Solve for x:
3=16-3.8=12.2
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