Question

Please give step by step explanation ... Please don't give only answer.. Please (◍•ᴗ•◍)❤​

Answer 1

For the first slide,

Given, P=1.5m, One angle=30°(Let it be, Θ=30°)

Now, required to find is H

We know, sinΘ=P/H

⇒sin30°=1.5/H

⇒1/2=1.5/H(∵sin30°=1/2)

⇒H=3m

For the second slide,

Given, P=3m, One angle=60°(Let it be, Θ=60°)

Now, required to find is H

We know, sinΘ=P/H

⇒sin60°=3/H

⇒√3/2=3/H(∵sin60°=√3/2)

⇒H=2√3m

Answer 2

Step-by-step explanation:

Basics. The present perfect tense refers to an action or state that either occurred at an indefinite time in the past (e.g., we have talked before) or began in the past and continued to the present time (e.g., he has grown impatient over the last hour). This tense is formed by have/has + the past participle.