Answer is A
Step-by-step explanation:
Go over to the left 3 times then up 6
Answer:
y=1
Step-by-step explanation:
6=2(y+2)
6=2y+4
2=2y
y=1
I attached a pic with my work on it. Hope this helps!
Remember that all the interior angles of a triangle add up to 180°.
The picture tells us two of the angles,

which is 40° and

which is also 40°.
Subtract the measurement of these two angles from 180° to find the measure of the third angle,

:
180° - 40° - 40° = 100°.
The measure of angle RST is 100°.
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Answer: 100°
The perimeter is 16 inches
4.5+5.5+6=16