A tree breaks; the broken part forms $60^\circ$ with the ground touching at $7$ m from the base. The standing piece $h_1

Question

A tree breaks; the broken part forms $60^\circ$ with the ground touching at $7$ m from the base. The standing piece $h_1$ equals—

Accepted Answer

$7 \cdot 	an 60^\circ = 7\sqrt{3}$ m

Answer

$\dfrac{7}{	an 60^\circ}$ m

Answer

$7 \cdot \sin 60^\circ$ m

Answer

$7 \cdot \cos 60^\circ$ m

A tree breaks; the broken part forms 60∘60^\circ60∘ with the ground touching at 777 m from the base. The standing piece h1h_1h1​ equals—