Question

Please help me with the question!!!!!!

Answer 1

Now We know

`\\ \sf\longmapsto tan30=(7)/(B)`

`\\ \sf\longmapsto (1)/(√(3))=(7)/(B)`

`\\ \sf\longmapsto B=7√(3)`

`\\ \sf\longmapsto B=7(1.732)`

`\\ \sf\longmapsto B\approx 12`

Now

Using pythagorean theorem

`\\ \sf\longmapsto H^2=P^2+B^2`

`\\ \sf\longmapsto H^2=7^2+12^2`

`\\ \sf\longmapsto H^2=144+49`

`\\ \sf\longmapsto H^2=193`

`\\ \sf\longmapsto H=√(193)`

`\\ \sf\longmapsto H\approx 13`