Question

Answer the quest I will mark as brainlist​

Answer 1

Given :-

<OTA = 30°

OT = 4cm

To Find :-

length of AT

we know that,

CosØ= b/h

Given :-

Ø= 30°

Cos30° = AT/ 4

Value of cos30° is √3/2

√3/2=AT/4

√3×4/2=AT

√3×2=AT

2√3 = AT

Hence,

AT = 2√3 cm

Answer 2

Answer:AT=2√3

Explanation: apply cos 30