Question

Construct a triangle ABC with base
BC = 8cm, and angle ACB = 90° and
angle ABC = 30°. Measure AB, AC,
angle BAC and record.
Find the value of sin 30°, cos 30°
tan 30° using the sides of A ABC
Also find the sin L BAC, cos L BAC
30
B
8cm
Writé
your
observation about the values of
i) sin 30° and cos LBAC
ii) cos 30° and sin LBAC
What are these angles called ?​

Answer 1

Answer:

Construct a triangle ABC with base

BC = 8cm, and angle ACB = 90° and

angle ABC = 30°. Measure AB, AC,

angle BAC and record.

Find the value of sin 30°, cos 30°

tan 30° using the sides of A ABC

Also find the sin L BAC, cos L BAC

30

B

8cm

Writé