Answer:
8. c
9.a
10. B
Step-by-step explanation:
alam ko Ayan eh kung mali sensya na
1. C
-We need to find x first.
x = (2x-40)
x-2x = -40
-x = -40
-x should always be positive.
-1*-x = -40*x
x = 40
-Use x to find the maesure of angles M and T.
angle T = 2(40)-40
angle T = 40
-Equate everything to 360 since that is the sum of the interior angles of a quadrilateral.
360 = 2(40)+2(x)
360 = 80+2x
280 = 2x
-Remove the 2 from the variable side.
280/2 = 2x/2
x = 140
•measure of angle A is 140°.
2. B
SV = SG
SV = 14
•measure of SV is 14 cm.
3. B
-Since SA and FE are opposite, it means they are ≅.
2x+5 = 7x-5
2x-7x = -5-5
-5x = -10
-Remove the 5 from the variable side.
-10/-5 = -5x/-5
× = 2
•The value of x is 2.
*Pls use the explanation as notes. Thanks! :)
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Answers & Comments
Answer:
8. c
9.a
10. B
Step-by-step explanation:
alam ko Ayan eh kung mali sensya na
Answer:
1. C
-We need to find x first.
x = (2x-40)
x-2x = -40
-x = -40
-x should always be positive.
-1*-x = -40*x
x = 40
-Use x to find the maesure of angles M and T.
angle T = 2(40)-40
angle T = 40
-Equate everything to 360 since that is the sum of the interior angles of a quadrilateral.
360 = 2(40)+2(x)
360 = 80+2x
280 = 2x
-Remove the 2 from the variable side.
280/2 = 2x/2
x = 140
•measure of angle A is 140°.
2. B
SV = SG
SV = 14
•measure of SV is 14 cm.
3. B
-Since SA and FE are opposite, it means they are ≅.
2x+5 = 7x-5
2x-7x = -5-5
-5x = -10
-Remove the 5 from the variable side.
-10/-5 = -5x/-5
× = 2
•The value of x is 2.
*Pls use the explanation as notes. Thanks! :)