T In the diagram, P, Q, R and S are four points lying
on horizontal ground. RT represents a slanting
lamp post. The angles of elevation of the top of the
lamp post from P, Q and Sare 42°, 62° and 56°
respectively. PQ= 3.4 m and RS= 2.9 m, calculate
the length of the lamp post. Hence determine the
angle which the lamp post makes with the vertical
line

d

step-by-step explanation:

d

h df tyjgtyj ttd y ytkgfty ty

step-by-step explanation:

tyty jry j y yj yttj yhgtyj y ghyj ytthj

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.

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