Answer:
5
Step-by-step explanation:
Answer:
B=95°
E=95°
D=20°
C=65°
BC=7cm
Step-by-step explanation:
the triangles look like they are identical, just different in size only. Since DE= 15 and AB=10 that may mean that they have a 5cm difference making side BC= 7cm since EF= 12 minus 5 equals 7cm. Now for the other angles, a triangle no matter what,if we put all their angles together equal 180°. We already know angle A= 20 so the same applies to angle D. We also know that angle F=65 degrees, that makes angle C the same. The only thing that's left are angles B and E that can be found by adding our other angles. So if A+C(20+65)=85 then 180-85=95 degrees is angle B and since the triangles are identical the same goes to E.
Answer:
the answer is in the picture
Simplification of the expression gives 2a + c = -24
<h3>How to simplify the equation</h3>
4+4-3-4-2-5-1-8-9-0=a +c + a
First, let's add
Then, let's substract
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We then have,
Thus, simplification of the expression gives 2a + c = -24
Learn more about algebraic expressions here:
brainly.com/question/723406
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