5^2= (-5)^2 true or false
1 answer:
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Answer:
x = 13
Step-by-step explanation:
Find the diagram attached
From the diagram, the sum of angle of the straight line BCD is 180°. Hence;
<BCE+<ECF<90 = 180
<BCE+64+90=180
<BCE+154 = 180
<BCE = 180-154
<BCE = 26°
Next is to get x.
The sum of interior angles <BCE and <BEC is equal to exterior angle <ABE
<BCE + <BEC = <ABE
26+x = 3x
Collect like terms
26 =3x-x
26=2x
x = 26/2
x = 13
Hence the value of x is 13
Answer:
<em>x = 7.5 cm </em>
Step-by-step explanation:
ΔBCA ~ ΔECD ⇒ the corresponding sides are proportional.
=
AC = 4 + 6 = 10 cm
=
⇔ 10x = 6(x + 5) ⇒ <em>x = 7.5 cm</em>