In δabc, ∠a is a right angle and m∠b = 60. if ab = 20 ft, find bc.

I think that BC would be 10 degree angle because there are 180 degrees in a triangle and is A is 90 B is 60 and AB is 20 thats 170 leaving 10 left over

Step-by-step explanation:

Im not sure if i'm correct, but i think the answer is BC= 40ft

Step-by-step explanation:

30º 60º 90º Triangle (i think)

x= 20ft

2x = 40ft

x sqaureroot of 3 = 20 squareroot of 3

a - base

b - exponent

so,

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