Question

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Answer 1

Answer:

1 is 90* plus the both no. it is so easy

Answer 2

Ans 1. In ΔADC

tan30

o

=

AC

DC

3

1

=

d

h

........(1)

d=

3

h

→d=

3

×10

3

=30m

In ΔBCD

tan60

o

=

BC

DC

3

=

d−20

h

.......(2)

on solving equation (1) & (2)

3

=

3

h−20

h

⇒3h−20

3

=h

2h=20

3

h=10

3

m

height of tower.

Ans 2. For Ans 2. REFER TO THE ATTACHMENT

Ans 3. REFER TO ATTACHMENT

Ans 4. REFER TO THE ATTACHMENT