How much is 12 + 6?
and how much 7+7+12?
Please help me

12 + 6

Add Them:

12 + 6 = 18

7 + 7 + 12

Add Them:

7 + 7 + 12 = 26

just take the area of the square and then the area of the circle then subtract the circle area from the squares area

step-by-step explanation:

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet