Answer:
since the sum of all angles of a triangle is 180°
Step-by-step explanation:
so 100°+4y+25°+3y+20=180°
145°+7y=180°
7y=180°-145°
7y=35°
y=5°
Answer:
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Step-by-step explanation:
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If you type that equation into Desmos graphing calc it’ll solve it for you
Answer:
its the second option
Step-by-step explanation:
u can search for the formula for a right trapezoid and then solve it
