Question

In triangle LMN, LM=90and Ln=30 IfLN=12
cm find LM And MN

Answer 1

Answer:

sin30 = LM/LN

we know that sin30 = 1/2

LM/LN=1/2

LN = 12(given)

1/2=LM/12

LM= 6cm

cos30 =MN/LN

we know that cos30=√3/2

MN/LN=√3/2

√3/2=MN/12

MN=6√3cm

Hope it may help you