Question

pleasee yg bisaa tolong dijawab, sertakan cara yaa.​

Answer 1

D. 11,75 m

Penjelasan dengan langkah-langkah:

Diketahui:

jarak pengamat = 10 meter

tinggi pengamat = 1,75 m

[tex]\displaystyle\sf~ \theta [/tex] = 45°

Ditanya:

tinggi menara = ....?

Penyelesaian:

[tex]\begin{aligned} \displaystyle\sf~ tan~\theta & = \displaystyle\sf~ \frac{depan}{samping} \\ \\ \displaystyle\sf~ tan~45°& = \displaystyle\sf~ \frac{a}{10} \\ \\ 1 & = \displaystyle\sf~ \frac{a}{10} \\ \\ \displaystyle\sf~a & = \displaystyle\sf~10\end{aligned}[/tex]

tinggi menara

= a + tinggi pengamat

= (10 + 1,75)m

= 11,75 m

(Opsi D)