Question

I want the answer for this .pls​

Answer 1

Step-by-step explanation:

let AB be a building CD is a cable tower

In triangle ABD

AB /BD =tan 45°

7 / BD = 1 BD =7 m

in triangle ACE

ac=BD= 7 m

ce/ ae = tan 60°

ce/ 7 =√3 ce = 7√ 3

cd= ce +cd = 7√3+1

Answer 2

Answer:

19.124 m

Step-by-step explanation:

Let the building of height 7 m be AB and the height of tower be EC.

∴ EC = DE + CD

=> CD = AB = 7 m and BC = AD.

A.C.Q

In ΔABC,

tan 45° = AB/BC

1 = 7/BC

=> BC = 7 m

Since, BC = AD, so AD is also 7m.

In ΔADE,

tan 60° = DE/AD

=> √3 = DE/7

=> DE = 7√3 m

Height of the tower = DE + CD

=> 7√3 + 7

=> 7 * 1.732 + 7

=> 19.124 m

#Hope my answer helped you