You can find trigonometric function values in different ways, including using a calculator, or as discussed here, using a table.

The following is a so-called "three-place trigonometric table", where, for angles up to 45°, use the left-hand column and the upper function labels, and  for angles greater than 45°, use the right-hand column and the lower function labels.

For example, sin 5° = .087 and sin 85° = .996

θ	sin θ cos θ	cos θ sin θ	tan θ cot θ	cot θ tan θ	sec θ csc θ	csc θ sec θ
0°	.000	1.000	.000	........	1.000	........	90°
1°	.017	1.000	.017	57.290	1.000	57.299	89°
2°	.035	.999	.035	28.636	1.001	28.654	88°
3°	.052	.999	.052	19.081	1.001	19.107	87°
4°	.070	.998	.070	14.301	1.002	14.336	86°
5°	.087	.996	.087	11.430	1.004	11.474	85°
6°	.105	.995	.105	9.514	1.006	9.567	84°
7°	.122	.993	.123	8.144	1.008	8.206	83°
8°	.139	.990	.141	7.115	1.010	7.185	82°
9°	.156	.988	.158	6.314	1.012	6.392	81°
	sin θ cos θ	cos θ sin θ	tan θ cot θ	cot θ tan θ	sec θ csc θ	csc θ sec θ
10°	.174	.985	.176	5.671	1.015	5.759	80°
11°	.191	.982	.194	5.145	1.019	5.241	79°
12°	.208	.978	.213	4.705	1.022	4.810	78°
13°	.225	.974	.231	4.331	1.026	4.445	77°
14°	.242	.970	.249	4.011	1.031	4.134	76°
15°	.259	.966	.268	3.732	1.035	3.864	75°
16°	.276	.961	.287	3.487	1.040	3.628	74°
17°	.292	.956	.306	3.271	1.046	3.420	73°
18°	.309	.951	.325	3.078	1.051	3.236	72°
19°	.326	.946	.344	2.904	1.058	3.072	71°
	sin θ cos θ	cos θ sin θ	tan θ cot θ	cot θ tan θ	sec θ csc θ	csc θ sec θ
20°	.342	.940	.364	2.747	1.064	2.924	70°
21°	.358	.934	.384	2.605	1.071	2.790	69°
22°	.375	.927	.404	2.475	1.079	2.669	68°
23°	.391	.921	.424	2.356	1.086	2.559	67°
24°	.407	.914	.445	2.246	1.095	2.459	66°
25°	.423	.906	.466	2.145	1.103	2.366	65°
26°	.438	.899	.488	2.050	1.113	2.281	64°
27°	.454	.891	.510	1.963	1.122	2.203	63°
28°	.469	.883	.532	1.881	1.133	2.130	62°
29°	.485	.875	.554	1.804	1.143	2.063	61°
	sin θ cos θ	cos θ sin θ	tan θ cot θ	cot θ tan θ	sec θ csc θ	csc θ sec θ
30°	.500	.866	.577	1.732	1.155	2.000	60°
31°	.515	.857	.601	1.664	1.167	1.972	59°
32°	.530	.848	.625	1.600	1.179	1.887	58°
33°	.545	.839	.649	1.540	1.192	1.836	57°
34°	.559	.829	.675	1.483	1.206	1.788	56°
35°	.574	.819	.700	1.428	1.221	1.743	55°
36°	.588	.809	.727	1.376	1.236	1.701	54°
37°	.602	.799	.754	1.327	1.252	1.662	53°
38°	.616	.788	.781	1.280	1.269	1.624	52°
39°	.629	.777	.810	1.235	1.287	1.589	51°
	sin θ cos θ	cos θ sin θ	tan θ cot θ	cot θ tan θ	sec θ csc θ	csc θ sec θ
40°	.643	.766	.839	1.192	1.305	1.556	50°
41°	.656	.755	.869	1.150	1.325	1.524	49°
42°	.669	.743	.900	1.111	1.346	1.494	48°
43°	.682	.731	.933	1.072	1.367	1.466	47°
44°	.695	.719	.966	1.036	1.390	1.440	46°
45°	.707	.707	1.000	1.000	1.414	1.414	45°